From 90c03b3c6301f5d8908ce3e2dec936a74b035014 Mon Sep 17 00:00:00 2001 From: omagdy7 Date: Sun, 5 Mar 2023 20:04:34 +0200 Subject: Solved a bunch of problems --- codechef/ConcatPalindrome/main | Bin 0 -> 48736 bytes codechef/ConcatPalindrome/main.cpp | 130 +++++++++++++++++++++++++++++ codechef/ConcatPalindrome/main_input0.txt | 13 +++ codechef/ConcatPalindrome/main_input1.txt | 4 + codechef/ConcatPalindrome/main_input2.txt | 4 + codechef/ConcatPalindrome/main_output0.txt | 4 + codechef/ConcatPalindrome/main_output1.txt | 1 + codechef/ConcatPalindrome/main_output2.txt | 1 + 8 files changed, 157 insertions(+) create mode 100755 codechef/ConcatPalindrome/main create mode 100755 codechef/ConcatPalindrome/main.cpp create mode 100644 codechef/ConcatPalindrome/main_input0.txt create mode 100644 codechef/ConcatPalindrome/main_input1.txt create mode 100644 codechef/ConcatPalindrome/main_input2.txt create mode 100644 codechef/ConcatPalindrome/main_output0.txt create mode 100644 codechef/ConcatPalindrome/main_output1.txt create mode 100644 codechef/ConcatPalindrome/main_output2.txt (limited to 'codechef/ConcatPalindrome') diff --git a/codechef/ConcatPalindrome/main b/codechef/ConcatPalindrome/main new file mode 100755 index 0000000..949fc76 Binary files /dev/null and b/codechef/ConcatPalindrome/main differ diff --git a/codechef/ConcatPalindrome/main.cpp b/codechef/ConcatPalindrome/main.cpp new file mode 100755 index 0000000..37c41d5 --- /dev/null +++ b/codechef/ConcatPalindrome/main.cpp @@ -0,0 +1,130 @@ +#include +using namespace std; + +using ll = long long; +using pi = pair; +using vpi = vector; +using vi = vector; +using vll = vector; +using mpii = map; +using mpll = map; +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 + +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}; + +//pretty printing +template +void printm(const map &mp) { + cerr << "{" << endl; + for (auto p : mp) { + cerr << " { " << p.first << " : " << p.second << " }\n"; + } + cerr << "}" << endl; +} +template +void printv(const vector &v) { + cerr << "["; + for (int i = 0; i < v.size(); i++) { + if (i == v.size() - 1) { + cerr << v[i]; + } else { + cerr << v[i] << ", "; + } + } + cerr << "]\n"; +} + +template +void printvv(const vector> &v) { + cerr << "[\n"; + for (auto &vec : v) { + cout << " "; + printv(vec); + } + cerr << "]\n"; +} +void print() { + cerr << "\n"; +} + +template +void print(T val, TS... vals) { + cerr << val << " "; + print(vals...); +} + + +/* 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 + */ + +// dddaddd +// abcba +// dcaaacd + +void solve() { + int n, m; + cin >> n >> m; + string a, b; + cin >> a >> b; + set st; + string ab = a + b; + vector fq('z' - 'a' + 2); + for(auto ch : ab) { + st.insert(ch); + fq[ch - 'a']++; + } + int even = 0; + int odd = 0; + if ((n + m) % 2 == 0) { + for (auto ch : st) { + even += fq[ch - 'a'] % 2 == 0; + } + cout << (even == st.size() ? "YES" : "NO") << '\n'; + } else { + char cho; + for (auto ch : st) { + even += fq[ch - 'a'] % 2 == 0; + if (fq[ch - 'a'] % 2 != 0) { + odd += fq[ch - 'a'] % 2 != 0; + cho = ch; + } + } + if (odd == 1) { + if (n > m) { + cout << (count(all(a), cho) ? "YES" : "NO") << '\n'; + } else { + cout << (count(all(b), cho) ? "YES" : "NO") << '\n'; + } + } else { + cout << "NO" << '\n'; + } + } + +} + +int main () { + ios_base::sync_with_stdio(false); + cin.tie(NULL); + int tt; + cin >> tt; + while(tt--) { + solve(); + } +} + + diff --git a/codechef/ConcatPalindrome/main_input0.txt b/codechef/ConcatPalindrome/main_input0.txt new file mode 100644 index 0000000..a2f3667 --- /dev/null +++ b/codechef/ConcatPalindrome/main_input0.txt @@ -0,0 +1,13 @@ +4 +5 2 +abcdd +ac +3 3 +abc +xyz +2 4 +aa +aaaa +1 3 +a +aax diff --git a/codechef/ConcatPalindrome/main_input1.txt b/codechef/ConcatPalindrome/main_input1.txt new file mode 100644 index 0000000..39c23ff --- /dev/null +++ b/codechef/ConcatPalindrome/main_input1.txt @@ -0,0 +1,4 @@ +1 +3 4 +aaa +cddc \ No newline at end of file diff --git a/codechef/ConcatPalindrome/main_input2.txt b/codechef/ConcatPalindrome/main_input2.txt new file mode 100644 index 0000000..e59d54e --- /dev/null +++ b/codechef/ConcatPalindrome/main_input2.txt @@ -0,0 +1,4 @@ +1 +5 2 +accdd +ax \ No newline at end of file diff --git a/codechef/ConcatPalindrome/main_output0.txt b/codechef/ConcatPalindrome/main_output0.txt new file mode 100644 index 0000000..2bc7799 --- /dev/null +++ b/codechef/ConcatPalindrome/main_output0.txt @@ -0,0 +1,4 @@ +YES +NO +YES +NO diff --git a/codechef/ConcatPalindrome/main_output1.txt b/codechef/ConcatPalindrome/main_output1.txt new file mode 100644 index 0000000..d2bb323 --- /dev/null +++ b/codechef/ConcatPalindrome/main_output1.txt @@ -0,0 +1 @@ +YES \ No newline at end of file diff --git a/codechef/ConcatPalindrome/main_output2.txt b/codechef/ConcatPalindrome/main_output2.txt new file mode 100644 index 0000000..ba28208 --- /dev/null +++ b/codechef/ConcatPalindrome/main_output2.txt @@ -0,0 +1 @@ +NO \ No newline at end of file -- cgit v1.2.3