diff options
37 files changed, 1008 insertions, 0 deletions
diff --git a/codeforces/Fireworks/main.cpp b/codeforces/Fireworks/main.cpp new file mode 100755 index 0000000..e7bb04a --- /dev/null +++ b/codeforces/Fireworks/main.cpp @@ -0,0 +1,58 @@ +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +void solve() { + ll a, b, m; + cin >> a >> b >> m; + cout << ceil(m + 1, a) + ceil(m + 1, b) << '\n'; +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/codeforces/Fireworks/main_input0.txt b/codeforces/Fireworks/main_input0.txt new file mode 100644 index 0000000..69b526a --- /dev/null +++ b/codeforces/Fireworks/main_input0.txt @@ -0,0 +1,7 @@ +6 +6 7 4 +3 4 10 +7 8 56 +5 6 78123459896 +1 1 1 +1 1 1000000000000000000 diff --git a/codeforces/Fireworks/main_output0.txt b/codeforces/Fireworks/main_output0.txt new file mode 100644 index 0000000..e3d2222 --- /dev/null +++ b/codeforces/Fireworks/main_output0.txt @@ -0,0 +1,6 @@ +2 +7 +17 +28645268630 +4 +2000000000000000002 diff --git a/codeforces/SeraphimTheOwl/main.cpp b/codeforces/SeraphimTheOwl/main.cpp new file mode 100755 index 0000000..34bad85 --- /dev/null +++ b/codeforces/SeraphimTheOwl/main.cpp @@ -0,0 +1,65 @@ +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +void solve() { + int n, m; + cin >> n >> m; + vi a(n); + vi b(n); + for (auto &x : a) { + cin >> x; + } + for (auto &x : b) { + cin >> x; + } +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/codeforces/SettingUpCamp/main.cpp b/codeforces/SettingUpCamp/main.cpp new file mode 100755 index 0000000..93886b5 --- /dev/null +++ b/codeforces/SettingUpCamp/main.cpp @@ -0,0 +1,66 @@ +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +void solve() { + int a, b, c; + cin >> a >> b >> c; + if (b % 3 != 0 && b % 3 + c <= 2) { + cout << -1 << '\n'; + return; + } + int ans = a + (b + c) / 3; + if ((b + c) % 3 > 0) { + ans++; + } + cout << ans << '\n'; +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/codeforces/SettingUpCamp/main_input0.txt b/codeforces/SettingUpCamp/main_input0.txt new file mode 100644 index 0000000..42d7034 --- /dev/null +++ b/codeforces/SettingUpCamp/main_input0.txt @@ -0,0 +1,11 @@ +10 +1 2 3 +1 4 1 +1 4 2 +1 1 1 +1 3 2 +19 7 18 +0 0 0 +7 0 0 +0 24 0 +1000000000 1000000000 1000000000 diff --git a/codeforces/SettingUpCamp/main_output0.txt b/codeforces/SettingUpCamp/main_output0.txt new file mode 100644 index 0000000..d5228d1 --- /dev/null +++ b/codeforces/SettingUpCamp/main_output0.txt @@ -0,0 +1,10 @@ +3 +-1 +3 +-1 +3 +28 +0 +7 +8 +1666666667 diff --git a/codeforces/StairPeakOrNeither/main.cpp b/codeforces/StairPeakOrNeither/main.cpp new file mode 100755 index 0000000..231e38b --- /dev/null +++ b/codeforces/StairPeakOrNeither/main.cpp @@ -0,0 +1,64 @@ +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +void solve() { + int a, b, c; + cin >> a >> b >> c; + if (a < b && b < c) { + cout << "STAIR\n"; + } else if (a < b && b > c) { + cout << "PEAK\n"; + } else { + cout << "NONE\n"; + } +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/codeforces/StairPeakOrNeither/main_input0.txt b/codeforces/StairPeakOrNeither/main_input0.txt new file mode 100644 index 0000000..2a59631 --- /dev/null +++ b/codeforces/StairPeakOrNeither/main_input0.txt @@ -0,0 +1,8 @@ +7 +1 2 3 +3 2 1 +1 5 3 +3 4 1 +0 0 0 +4 1 7 +4 5 7 diff --git a/codeforces/StairPeakOrNeither/main_output0.txt b/codeforces/StairPeakOrNeither/main_output0.txt new file mode 100644 index 0000000..3f723a8 --- /dev/null +++ b/codeforces/StairPeakOrNeither/main_output0.txt @@ -0,0 +1,7 @@ +STAIR +NONE +PEAK +PEAK +NONE +NONE +STAIR diff --git a/codeforces/Upscaling/main.cpp b/codeforces/Upscaling/main.cpp new file mode 100755 index 0000000..7744a9f --- /dev/null +++ b/codeforces/Upscaling/main.cpp @@ -0,0 +1,135 @@ +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + + +vector<string> checkerboard = { + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", + "..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##..##", +}; + + +void solve() { + int n; + cin >> n; + bool toggle = true; + cerr << checkerboard.size() << '\n'; + cerr << checkerboard[0].size() << '\n'; + for (int i = 0; i < n * 2; i++) { + for (int j = 0; j < n * 2; j++) { + cout << checkerboard[i][j]; + } + cout << "\n"; + } +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/codeforces/Upscaling/main_input0.txt b/codeforces/Upscaling/main_input0.txt new file mode 100644 index 0000000..4934959 --- /dev/null +++ b/codeforces/Upscaling/main_input0.txt @@ -0,0 +1,5 @@ +4 +1 +2 +3 +4 diff --git a/codeforces/Upscaling/main_output0.txt b/codeforces/Upscaling/main_output0.txt new file mode 100644 index 0000000..7cd83b6 --- /dev/null +++ b/codeforces/Upscaling/main_output0.txt @@ -0,0 +1,20 @@ +## +## +##.. +##.. +..## +..## +##..## +##..## +..##.. +..##.. +##..## +##..## +##..##.. +##..##.. +..##..## +..##..## +##..##.. +##..##.. +..##..## +..##..## diff --git a/contests/Round938/A/main.cpp b/contests/Round938/A/main.cpp new file mode 100755 index 0000000..cf881d0 --- /dev/null +++ b/contests/Round938/A/main.cpp @@ -0,0 +1,68 @@ +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +void solve() { + int n, a, b; + cin >> n >> a >> b; + int ans = 0; + if (a * 2 <= b) { + ans += a * n; + } else { + if (n % 2 == 0) { + ans += (n / 2) * b; + } else { + ans += (n / 2) * b + a; + } + } + cout << ans << '\n'; +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/contests/Round938/A/main_input0.txt b/contests/Round938/A/main_input0.txt new file mode 100644 index 0000000..9db5ef7 --- /dev/null +++ b/contests/Round938/A/main_input0.txt @@ -0,0 +1,5 @@ +4 +2 5 9 +3 5 9 +3 5 11 +4 5 11 diff --git a/contests/Round938/A/main_output0.txt b/contests/Round938/A/main_output0.txt new file mode 100644 index 0000000..79048ee --- /dev/null +++ b/contests/Round938/A/main_output0.txt @@ -0,0 +1,4 @@ +9 +14 +15 +20 diff --git a/contests/Round938/B/main.cpp b/contests/Round938/B/main.cpp new file mode 100755 index 0000000..d4e8055 --- /dev/null +++ b/contests/Round938/B/main.cpp @@ -0,0 +1,85 @@ +#include <algorithm> +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +// 3 9 6 +// 5 7 1 +// 11 4 8 + +void solve() { + int n, c, d; + cin >> n >> c >> d; + vi v(n * n); + for (int i = 0; i < n * n; i++) { + cin >> v[i]; + } + int mn = *min_element(all(v)); + vi mat(n * n); + mat[0] = mn; + for (int i = 1; i < n * n; i++) { + if (i % n == 0) { + mat[i] = mat[i - n] + c; + } else { + mat[i] = mat[i - 1] + d; + } + } + sort(all(mat)); + sort(all(v)); + for (int i = 0; i < n * n; i++) { + if (v[i] != mat[i]) { + cout << "NO\n"; + return; + } + } + cout << "YES\n"; +} + +int main() { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while (tt--) { + solve(); + } +} diff --git a/contests/Round938/B/main_input0.txt b/contests/Round938/B/main_input0.txt new file mode 100644 index 0000000..376f2ed --- /dev/null +++ b/contests/Round938/B/main_input0.txt @@ -0,0 +1,11 @@ +5 +3 2 3 +3 9 6 5 7 1 10 4 8 +3 2 3 +3 9 6 5 7 1 11 4 8 +2 100 100 +400 300 400 500 +3 2 3 +3 9 6 6 5 1 11 4 8 +4 4 4 +15 27 7 19 23 23 11 15 7 3 19 23 11 15 11 15 diff --git a/contests/Round938/B/main_output0.txt b/contests/Round938/B/main_output0.txt new file mode 100644 index 0000000..0d0a576 --- /dev/null +++ b/contests/Round938/B/main_output0.txt @@ -0,0 +1,5 @@ +NO +YES +YES +NO +NO diff --git a/contests/Round938/C/main.cpp b/contests/Round938/C/main.cpp new file mode 100755 index 0000000..3ce56ff --- /dev/null +++ b/contests/Round938/C/main.cpp @@ -0,0 +1,109 @@ +#include <algorithm> +#include <bits/stdc++.h> + +using namespace std; + +using ll = long long; +using pii = pair<int, int>; +using vpii = vector<pii>; +using vi = vector<int>; +using vll = vector<long long>; +using mpii = map<int, int>; +using mpll = map<ll, ll>; +using db = long double; + +#define pb push_back +#define all(x) (x).begin(), (x).end() +#define rall(x) (x).rbegin(), (x).rend() +#define lb lower_bound +#define ub upper_bound +#define make_unique(x) \ + sort(all((x))); \ + (x).resize(unique(all((x))) - (x).begin()) +#define ceil(a, b) ((a) + (b)-1) / (b) + +const int mod = (int)1e9 + 7; +const db pi = acos((db)-1); +const int dx[4]{1, 0, -1, 0}; +const int dy[4]{0, 1, 0, -1}; + +#ifdef LOCAL +#include "debug.h" +#else +#define dbg(...) 42 +#endif + +/* stuff you should look for: + --------------------------- + * special cases (n=1?) + * int overflow, array bounds + * do smth instead of nothing and stay organized + * WRITE STUFF DOWN + * DON'T GET STUCK ON ONE APPROACH + */ + +// 11 +// 6 4 2 + +void solve() { + int n; + ll k; + cin >> n >> k; + vi v(n); + ll sum = 0; + for (auto &x : v) { + cin >> x; + sum += x; + } + vi tmp = v; + reverse(all(tmp)); + vll prefix(n + 1); + vll suffix(n + 1); + prefix[0] = 0; + suffix[0] = 0; + for (int i = 1; i < n + 1; i++) { + prefix[i] = prefix[i - 1] + v[i - 1]; + suffix[i] = suffix[i - 1] + tmp[i - 1]; + } + if (k >= sum) { + cout << n |
