Submission #646648

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
646648	2022-09-30 11:16:44	Vanilla	Sum Zero (RMI20_sumzero)	C++17	61 / 100	474 ms	47108 KiB

sumzero

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#include <bits/stdc++.h>
using namespace std;
typedef long long int64;
const int maxn = 4e5 + 5;
const int lg = 19;
int64 a [maxn];
map <int64, int> ps;
int l [maxn];
int jump [maxn][lg];
 
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin >> n;
    for (int i = 0; i <= n + 1; i++){
        l[i] = n + 1;
    }
    ps[0] = 0;
    int64 s = 0;
    for (int i = 1; i <= n; i++){
        cin >> a[i];
        s+=a[i];
        if (ps.count(s)) {
            l[ps[s] + 1] = i;
        }
        ps[s] = i;
    }
    for (int i = n; i >= 1; i--){
        l[i] = min(l[i], l[i + 1]);
 
 
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• Subtask 1: 22 / 22
• Subtask 2: 39 / 39
• Subtask 3: 0 / 39