제출 #131257

#제출 시각아이디문제언어결과실행 시간메모리
131257osaaateiasavtnl가로등 (APIO19_street_lamps)C++14
20 / 100
4 ms504 KiB
#include<bits/stdc++.h> using namespace std; const int N = 101; bool a[N][N]; signed main() { #ifdef HOME freopen("input.txt", "r", stdin); #else ios_base::sync_with_stdio(0); cin.tie(0); #endif int n, q; cin >> n >> q; for (int i = 0; i < n; ++i) { char c; cin >> c; a[0][i] = c == '1'; } for (int i = 0; i < q; ++i) { for (int j = 0; j < n; ++j) { a[i + 1][j] = a[i][j]; } string t; cin >> t; if (t == "toggle") { int p; cin >> p; --p; a[i + 1][p] ^= 1; } else { int l, r; cin >> l >> r; --r; --l; --r; int ans = 0; for (int j = 0; j <= i; ++j) { bool add = 1; for (int k = l; k <= r; ++k) { add &= a[j][k]; } ans += add; } cout << ans << '\n'; } } }
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