Submission #526463

#	Time	Username	Problem	Language	Result	Execution time	Memory
526463		White	Bigger segments (IZhO19_segments)	C++14	0 / 100	1 ms	332 KiB

segments

#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

long long sum[500002],maks[500002],br[500002];

int main ()
{

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    long long n;
    cin>>n;
    cin>>sum[0];
    br[0]=1;maks[0]=sum[0];
    for(int i=1;i<n;i++){
        cin>>sum[i];
        sum[i]+=sum[i-1];
    }

    for(int i=1;i<n;i++){
        int l=0,r=i,mid;
        while(l<r){
            mid=(l+r)/2;
            if(sum[i]-sum[mid]>=maks[mid]) l=mid+1;
            else r=mid;
        }
        if(l>0){
            br[i]=br[l-1]+1;
            maks[i]=sum[i]-sum[l-1];
        }else{
            br[i]=1;
            maks[i]=sum[i];
        }
    }

    //for(int i=0;i<n;i++)cout<<br[i]<<endl;

    cout<<br[n-1]<<endl;

    return 0;
}

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