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Submission #445004

# Submission time Handle Problem Language Result Execution time Memory
445004 2021-07-16T08:18:39 Z fuad27 Fancy Fence (CEOI20_fancyfence) C++14
0 / 100
 1 ms 204 KB 
#include<bits/stdc++.h>
using namespace std;
#define mod 1000000007
typedef long long ll;
#define int long long
ll rec(ll a, ll b)
{
	ll x = 1;
	if(a%2 == 0) {
		x*=(a/2)%mod;
		x*=a+1;
		x%=mod;
	}
	else {
		x*=((a+1)/2)%mod;
		x*=a%mod;
		x%=mod;
	}
	if(b%2 == 0) {
		x*=(b/2)%mod;
		x*=b+1;
		x%=mod;
	}
	else {
		x*=((b+1)/2)%mod;
		x*=b%mod;
		x%=mod;
	}
	return x%mod;
}
int32_t main () { 
	ll n, m;
	cin >> n;
	ll sumW = 0;
	for(ll i = 0;i<n;i++) {
		ll h;
		cin >> h;
		m = h;
		m%=mod;
	}
	for(ll i = 0;i<n;i++) {
		ll w;
		cin >> w;
		sumW += w%mod;
		sumW%=mod;
	}
	cout<<rec(sumW, m)<<endl;
}

Compilation message

fancyfence.cpp: In function 'int32_t main()':
fancyfence.cpp:47:19: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
   47 |  cout<<rec(sumW, m)<<endl;
      |                   ^

Subtask #1
0 / 0.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -