Submission

Score: 100

User: mumumimi

Problemset: ปริมาตรน้ำท่วม

Language: cpp

Time: 0.006 second

Submitted On: 2026-10-15 14:53:02

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