#include <bits/stdc++.h>
using namespace std;
const int MX = 305;
int N, h[MX];
int main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> N;
for(int i = 0; i < N; i++) cin >> h[i];
long long ans = 0;
for(int i = 0; i < N; i++){
for(; h[i] != 0; ){
int mn = h[i];
for(int j = i; j < N; j++){
if(h[j] == 0) break;
mn = min(mn, h[j]);
}
ans += mn;
for(int j = i; j < N; j++){
if(h[j] == 0) break;
h[j] -= mn;
ans += 2 * mn;
}
}
}
cout << ans << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
