Submission #549283

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
549283	2022-04-15 13:55:18	kevinxiehk	Sum Zero (RMI20_sumzero)	C++17	100 / 100	296 ms	18448 KiB

sumzero

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#include <bits/stdc++.h>
#define mp make_pair
#define pb emplace_back
#define fi first
#define se second
// #define int long long
#define inf 1e9
#define ick cout<<"ickbmi32.9\n"
using namespace std;
int nxt[400005];
long long ps;
signed main() {
    ios_base::sync_with_stdio(false); 
    cin.tie(0); cout.tie(0);
    int n;
    cin >> n;
    unordered_map<long long, int> la;
    la.reserve(n / 100);
    int t;
    for(int i = 1; i <= n; i++) {
        cin >> t;
        ps += t;
        nxt[i] = n + 1;
        if(la[ps] != 0 || ps == 0) {
            nxt[la[ps] + 1] = min(nxt[la[ps] + 1], i);
        }
        la[ps] = i;
    }
    la.clear();
 
 
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• Subtask 1: 22 / 22
• Subtask 2: 39 / 39
• Subtask 3: 39 / 39