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Submission #945654

# Submission time Handle Problem Language Result Execution time Memory
945654 2024-03-14T06:02:36 Z Sandarach151 Fancy Fence (CEOI20_fancyfence) C++17
0 / 100
 6 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

const int MODD = 1e9+7;

int mult(int n){
	int temp = 1;
	if(n%2==0){
		temp *= (n/2);
		temp %= MODD;
		temp *= (n+1);
		temp %= MODD;
	}
	else{
		temp *= (n+1/2);
		temp %= MODD;
		temp *= (n);
		temp %= MODD;
	}
	return temp;
}

signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n;
	cin >> n;
	int h[n];
	int w[n];
	for(int i=0; i<n; i++){
		cin >> h[i];
	}
	for(int i=0; i<n; i++){
		cin >> w[i];
	}
	int ans = 0;
	for(int i=0; i<n; i++){
		int temp = mult(w[i]);
		temp %= MODD;
		temp *= mult(h[i]);
		temp %= MODD;
		ans += temp;
		ans %= MODD;
	}
	for(int i=0; i<n; i++){
		int minn = h[i];
		for(int j=i+1; j<n; j++){
			minn = min(minn, h[j]);
			int temp = w[i]*w[j];
			temp %= MODD;
			temp *= mult(minn);
			temp %= MODD;
			ans += temp;
			ans %= MODD;
		}
	}
	cout << ans << '\n';
	return 0;
}

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 4 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Incorrect 4 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 5 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Incorrect 6 ms 348 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Incorrect 4 ms 344 KB Output isn't correct
3 Halted 0 ms 0 KB -