Submission #441543

#	Time	Username	Problem	Language	Result	Execution time	Memory
441543		leaked	Bigger segments (IZhO19_segments)	C++14	0 / 100	1 ms	312 KiB

segments

#include <bits/stdc++.h>

#define vec vector

using namespace std;

typedef long long ll;
signed main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    vec<int>a(n);
    vec<ll>pref(n);
    for(auto &z : a) cin>>z;
    for(int i=0;i<n;i++){
        pref[i]=(i?pref[i-1]:0)+a[i];
    }
    auto get=[&](int l,int r){
        return pref[r]-pref[l-1];
    };
    ll lst=a[0],s=0;
    int cnt=1;
    int w=0;

    for(int i=1;i<n;i++){
        s+=a[i];
        if(s>=lst){
            int j=w;
            while(1){
                if(pref[i]-pref[j]<pref[j]-pref[w]+lst) break;
                j++;
            }
            j--;
            cnt++;
            lst=pref[i]-pref[j];
            w=i;
            s=0;
        }
    }
    cout<<cnt;
    return 0;
}

Compilation message (stderr)

segments.cpp: In function 'int main()':
segments.cpp:18:10: warning: variable 'get' set but not used [-Wunused-but-set-variable]
   18 |     auto get=[&](int l,int r){
      |          ^~~

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27