Submission #475182

#	Time	Username	Problem	Language	Result	Execution time	Memory
475182		Ahmed57	Po (COCI21_po)	C++14	30 / 70	1090 ms	1868 KiB

Main

#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    long long n,ans = 0;
    cin>>n;
    vector<long long>arr(n);
    for(int i=0;i<n;i++)cin>>arr[i];
    vector<long long>att(n,0);
    while(arr!=att){
    long long s=-1,e=-1;
    long long m=1e9;
    for(int i=0;i<n;i++){
        if(arr[i]!=0){
            m=min(arr[i],m);
            if(s==-1){
                s=i;
            }
            e=i;
        }else if(s!=-1)break;
    }
    if(s!=-1&&e!=-1){
        for(int i=s;i<=e;i++){
            arr[i]-=m;
        }
        ans++;
    }
    }
    cout<<ans<<"\n";
    return 0;
}

• Subtask 1: 30 / 70