Submission #756871

#	Time	Username	Problem	Language	Result	Execution time	Memory
756871		Niko_shmiko	Growing Vegetables is Fun 4 (JOI21_ho_t1)	C++17	0 / 100	1 ms	212 KiB

Main

#include<bits/stdc++.h>
using namespace std;

int n, i, j, ans, k;

int main(){
    scanf("%d", &n);
    int a[n];
    for(i=0; i<n; i++){
        scanf("%d", &a[i]);
        if(i>0){
            a[i-1]=a[i]-a[i-1];
        }
    }
    i=0;
    j=n-2;
    while(i<j){
        if(a[i]>0){
            i++;
            continue;
        }
        if(a[j]<0){
            j--;
            continue;
        }
        k=min(1-a[i], 1+a[j]);
        a[i]+=k;
        a[j]-=k;
        ans+=k;
    }
    if(a[i]==0){
        ans++;
    }
    printf("%d", ans);
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
Main.cpp:10:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |         scanf("%d", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 40
• Subtask 2: 0 / 60