atcoder/abc185B

Author: xirc

atcoder/abc185/B/main.cpp

@@ -0,0 +1,38 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+using ll = int64_t;
+using ff = long double;
+
+int main() {
+    ios_base::sync_with_stdio(false);
+    cin.tie(0); cout.tie(0);
+
+    int N, M, T;
+    cin >> N >> M >> T;
+
+    bool success = true;
+    int time = 0;
+    int remaining = N;
+    for (int mm = 0; mm < M; ++mm) {
+        int A, B;
+        cin >> A >> B;
+        int consumed = A - time;
+        remaining -= consumed;
+        if (remaining <= 0) {
+            success = false;
+            break;
+        }
+        int charged = B - A;
+        remaining += charged;
+        remaining = min(remaining, N);
+        time = B;
+    }
+    int consumed = T - time;
+    remaining -= consumed;
+    if (remaining <= 0) success = false;
+
+    cout << (success ? "Yes" : "No") << endl;
+
+    return 0;
+}