제출 #555109

#제출 시각아이디문제언어결과실행 시간메모리
555109snasibov05Radio (COCI22_radio)C++14
10 / 110
1590 ms252 KiB
#include <bits/stdc++.h> using namespace std; int gcd(int a, int b){ while (b){ a %= b; swap(a, b); } return a; } int main() { int n, q; cin >> n >> q; vector<bool> v(n+1); for (int i = 0; i < q; ++i){ char t; cin >> t; if (t == 'S') { int x; cin >> x; v[x] = !v[x]; } else{ int l, r; cin >> l >> r; bool flag = true; for (int j = l; j <= r; ++j){ if (!v[j]) continue; for (int f = j + 1; f <= r; ++f){ if (!v[f]) continue; if (gcd(j, f) > 1) flag = false; } } if (flag) cout << "NE\n"; else cout << "DA\n"; } } return 0; }
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