Submission #741573

#	Time	Username	Problem	Language	Result	Execution time	Memory
741573		yeyso	Strange Device (APIO19_strange_device)	C++14	10 / 100	5054 ms	524288 KiB

strange_device

#include <bits/stdc++.h>
using namespace std;
int main(){
    long long n, a, b; cin >> n >> a >> b;
    vector<pair<long long, long long>> periods;
    long long l, r;
    long long time = 0;
    for(long long i = 0; i < n; i ++){
        cin >> l >> r;
        periods.push_back({l, r});
    }
    time = periods[periods.size()-1].second;
    set<pair<long long, long long>> res;
    long long x, y;
    for(long long i = 0; i < n; i ++){
        for(long long t = periods[i].first; t <= periods[i].second; t ++){
            x = (t + (t/b)) % a;
            y = t % b;
            res.insert({x, y});
        }
    }
    cout << res.size();
}
/*
g++ -std=gnu++17 -O2 -pipe -static -o device device.cpp
3 3 3
4 4
7 9
17 18
*/

Compilation message (stderr)

strange_device.cpp: In function 'int main()':
strange_device.cpp:7:15: warning: variable 'time' set but not used [-Wunused-but-set-variable]
    7 |     long long time = 0;
      |               ^~~~

• Subtask 1: 10 / 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