Submission

Score: 100

User: mumumimi

Problemset: ปริมาตรน้ำท่วม

Language: cpp

Time: 0.003 second

Submitted On: 2026-10-03 22:42:41

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;cin >> n;
    int arr[n];
    int total=0;
    for(int i=0;i<n;i++) cin >> arr[i];
    for(int i=0;i<n;i++){
        int leftmax=0;
        int rightmax=0;
        for(int j=0;j<i;j++) leftmax = max(leftmax,arr[j]);
        for(int j=n-1;j>i;j--) rightmax = max(rightmax,arr[j]);
        int water = min(leftmax,rightmax)-arr[i];
        if(water<0) water=0;
        total+=water;
    }
    cout << total;

}