Submission #1872470

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n)   FOR(i,0,n)
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<int,int> pint;

int a[200001];
int main(){
    int n;
    cin>>n;
    ll sum1=0,sum2=0;
    rep(i,n){
        cin>>a[i];
        sum2+=a[i];
    }
    sum2-=a[0];
    sum1+=a[0];
    ll ans=abs(sum2-sum1);
    rep(i,n){
        sum1+=a[i];
        sum2-=a[i];
        ans=min(ans,abs(sum2-sum1));
    }
    cout<<ans<<endl;
    return 0;
}

Submission Info

Judge Result