Submission #727735

#	Time	Username	Problem	Language	Result	Execution time	Memory
727735		Toxtaq	Labels (NOI20_labels)	C++17	100 / 100	119 ms	7804 KiB

Labels

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin >> n;
    vector<int>D(n);
    vector<long long>pref(n + 1);
    long long mn = 1e18, mx = -1e18;
    for(int i = 1;i < n;++i){
        cin >> D[i];
        pref[i] = pref[i - 1] + D[i];
        mx = max(mx, pref[i]);
        mn = min(mn, pref[i]);
    }
    int cnt = 0, id = -1;
    for(int i = 1;i <= n;++i){
        mx += i;
        mn += i;
        if(mx <= n && mx >= 1 && mn <= n && mn >= 1){
            cnt++;
            id = i;
        }
        mx -= i;
        mn -= i;
    }
    if(cnt == 1){
        cout << id << " ";
        for(int i = 1;i < n;++i){
            cout << pref[i] + id << " ";
        }
    }
    else{
        cout << -1;
    }
}

• Subtask 1: 7 / 7
• Subtask 2: 15 / 15
• Subtask 3: 25 / 25
• Subtask 4: 18 / 18
• Subtask 5: 35 / 35