Submission #858934

#	Time	Username	Problem	Language	Result	Execution time	Memory
858934		iulia_morariu	Sum Zero (RMI20_sumzero)	C++17	0 / 100	713 ms	880 KiB

sumzero

#include <bits/stdc++.h>

using namespace std;

int main(){
    cin.tie(0);ios::sync_with_stdio(0);

    //1.
    int n, q;

    //2.
    cin >> n;
    long long int v[n], sp[n + 1];
    sp[0] = 0;

    //3.
    for(int i = 0; i < n; i++){
        cin >> v[i];
        sp[i + 1] = sp[i] + v[i];
    }
    cin >> q;

    for(int iii = 0; iii < q; iii++){
        int l, r; cin >> l >> r;

        map<long long int, int> mp;
        int cnt = 0;
        int lp = l - 1;


        mp[ sp[lp] ]++;
        for(int i = l; i <= r; i++){
            //cout << "i = " << i << " cnt = ";
            if(mp.find( sp[i] ) == mp.end()){
                mp[ sp[i] ] = i;
            }else{
                if( mp[ sp[i] ] >= lp ){
                    //cout << "( facem cu " << mp[ sp[i] ] << " )   ";
                    lp = i;
                    cnt++;
                }
                mp[ sp[i] ] = i;
            }
            //cout << cnt << endl;
        }

        cout << cnt << endl;
    }




    return 0;
}

• Subtask 1: 0 / 22
• Subtask 2: 0 / 39
• Subtask 3: 0 / 39