제출 #465273

#제출 시각아이디문제언어결과실행 시간메모리
465273CyberCowFountain (eJOI20_fountain)C++17
30 / 100
21 ms988 KiB
#include <iostream> #include <algorithm> #include <vector> #include <queue> #include <set> #include <string> #include <cmath> #include <map> #include <unordered_map> #include <fstream> #include <iomanip> #include <iterator> #include <stack> using namespace std; using ll = long long; int d[100005], c[100005]; int main() { ios_base::sync_with_stdio(false); cin.tie(0); int n, q, i, j; cin >> n >> q; for ( i = 0; i < n; i++) { cin >> d[i] >> c[i]; } if (n <= 1000) { for (i = 0; i < q; i++) { int x, y; cin >> x >> y; x--; j = x; y -= c[j]; int g = 1; while (j >= 0 && y > 0) { int h = j + 1; while (h < n && d[j] >= d[h]) { h++; } if (h >= n) { g = 0; break; } j = h; y -= c[j]; } if (g) cout << j + 1 << '\n'; else cout << 0 << '\n'; } } return 0; }
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