Submission #1322058

#	Time	Username	Problem	Language	Result	Execution time	Memory
1322058		aaaaaaaa	Jakarta Skyscrapers (APIO15_skyscraper)	C++20	10 / 100	1 ms	332 KiB

skyscraper

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int inf = 1e18;
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(nullptr); cout.tie(nullptr);
    int n, m;
    cin >> n >> m;
    vector<int> d(m), s(m);
    for(int i = 0; i < m; ++i){
        cin >> d[i] >> s[i];
    }
    assert(m <= 3);
    if(m == 2){
        int dist = abs(d[0] - d[1]);
        if(dist % s[0] == 0){
            cout << dist / s[0] << "\n";
        }else{
            cout << "-1\n";
        }
    }else{
        int dist_ab = abs(d[0] - d[1]);
        int dist_ac = abs(d[0] - d[2]);
        int dist_cb = abs(d[1] - d[2]);
        int ans = inf;
        if(dist_ab % s[0] == 0){
            ans = min(ans, dist_ab / s[0]);
        }
        if(dist_ac % s[0] == 0 && dist_cb % s[2] == 0){
            ans = min(ans, dist_ac / s[0] + dist_cb / s[2]);
        }
        if(ans == inf) cout << "-1\n";
        else cout << ans << "\n";
    }
    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 14
• Subtask 4: 0 / 21
• Subtask 5: 0 / 43