제출 #748337

#제출 시각아이디문제언어결과실행 시간메모리
748337Sharky이상한 기계 (APIO19_strange_device)C++17
0 / 100
5041 ms524288 KiB
#include <bits/stdc++.h>
using namespace std;

#define int long long

int32_t main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int n, A, B, ans = 0;
    cin >> n >> A >> B;
    vector<bool> seen(A * B, 0);
    for (int i = 0; i < n; i++) {
        int l, r;
        cin >> l >> r;
        for (int j = l; j <= r; j++) seen[j % (A * B)] = 1;
    }
    for (bool x : seen) ans += x;
    cout << ans << '\n';
    return 0;
}
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