Submission #781449

#	Time	Username	Problem	Language	Result	Execution time	Memory
781449		andecaandeci	Strange Device (APIO19_strange_device)	C++17	0 / 100	5035 ms	524288 KiB

strange_device

#include<bits/stdc++.h>
using namespace std;
#define ioss ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define int long long
#define pii pair<int, int>
#define fi first
#define se second
#define pb push_back
int n, a, b;
signed main() {
    ioss;
    cin >> n >> a >> b;
    int ans = 0;
    set<int> s;
    for(int i = 0; i < n; i++) {
        int l, r, tmp = a*b;
        cin >> l >> r;
        l %= tmp, r %= tmp;
        if(l <= r) {
            for(int j = l; j <= r; j++) {
                if(!s.count(j)) s.insert(j);
            }
        } else {
            for(int j = l; j < tmp; j++) {
                if(!s.count(j)) s.insert(j);
            }
            for(int j = 0; j <= r; j++) {
                if(!s.count(j)) s.insert(j);
            }
        }
    }
    cout << s.size() << endl;
}

Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:13:9: warning: unused variable 'ans' [-Wunused-variable]
   13 |     int ans = 0;
      |         ^~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30