Solved two dp problems on cses

3 files changed, 123 insertions, 0 deletions

diff --git a/EveryoneLovesToSleep/main.cpp b/EveryoneLovesToSleep/main.cpp
new file mode 100755
index 0000000..e918150
--- /dev/null
+++ b/EveryoneLovesToSleep/main.cpp
@@ -0,0 +1,110 @@
+#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
+ */
+
+struct Time {
+  int H;
+  int M;
+
+  bool operator<(const Time &other) const {
+    if (H < other.H) {
+      return true;
+    } else if (H == other.H) {
+      if (M < other.M) {
+        return true;
+      } else {
+        return false;
+      }
+    }
+    return false;
+  }
+  Time operator-(const Time &other) const {
+    Time result;
+    result.H = H - other.H;
+    result.M = M - other.M;
+    if (result.M < 0) {
+      result.M += 60;
+    }
+    return result;
+  }
+};
+
+void solve() {
+  int n;
+  Time bedtime;
+  cin >> n >> bedtime.H >> bedtime.M;
+  vector<Time> v(n);
+  bool flag = false;
+  for (auto &x : v) {
+    cin >> x.H >> x.M;
+    if (x.H == bedtime.H && x.M == bedtime.M) {
+      flag = true;
+    }
+    if (x.H < 12) {
+      x.H += 23;
+    }
+  }
+  if (flag) {
+    cout << 0 << ' ' << 0 << '\n';
+    return;
+  }
+  Time mn = v[0];
+  Time mx = {0, 0};
+  for (int i = 0; i < n; i++) {
+    Time cur = v[i];
+    cur.H = cur.H % 24;
+    if (cur < mn) {
+      mn = v[i];
+    }
+  }
+  dbg(mn.H, mn.M);
+  cout << (mn - bedtime).H % 24 << ' ' << (mn - bedtime).M << '\n';
+}
+
+int main() {
+  ios_base::sync_with_stdio(false);
+  cin.tie(NULL);
+  int tt;
+  cin >> tt;
+  while (tt--) {
+    solve();
+  }
+}
diff --git a/EveryoneLovesToSleep/main_input0.txt b/EveryoneLovesToSleep/main_input0.txt
new file mode 100644
index 0000000..baa6cf3
--- /dev/null
+++ b/EveryoneLovesToSleep/main_input0.txt
@@ -0,0 +1,10 @@
+3
+1 6 13
+8 0
+3 6 0
+12 30
+14 45
+6 0
+2 23 35
+20 15
+10 30
diff --git a/EveryoneLovesToSleep/main_output0.txt b/EveryoneLovesToSleep/main_output0.txt
new file mode 100644
index 0000000..1a72a45
--- /dev/null
+++ b/EveryoneLovesToSleep/main_output0.txt
@@ -0,0 +1,3 @@
+1 47
+0 0
+10 55