Submission #1331307


Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int d[333][333][333],n,m;
#define mod 1000000007
int add(int x,int y){
	return (x+=y)<mod?x:x-mod;
}
int mul(int x,int y){
	return (int)((long long int)x*y%mod);
}
void addto(int&x,int y){
	x = add(x,y);
}
int main(){
	scanf("%d%d",&n,&m);
	d[0][1][0] = 1;
	for(int i=0; i<m; i++)
	for(int j=1; j<=i+1 && j<=n; j++)
	for(int k=0; j+k<=n; k++){
		if(d[i][j][k]==0)continue;
		addto(d[i+1][j+k][0],mul(d[i][j][k],j));
		addto(d[i+1][j][k],mul(d[i][j][k],k));
		if(j+k<n)
		addto(d[i+1][j][k+1],mul(d[i][j][k],n-j-k));
	}
	printf("%d\n",d[m][n][0]);
	return 0;
}

Submission Info

Submission Time
Task F - Road of the King
User maryanna2016
Language C++14 (GCC 5.4.1)
Score 1000
Code Size 633 Byte
Status AC
Exec Time 72 ms
Memory 128384 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:15:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^

Judge Result

Set Name sample all
Score / Max Score 0 / 0 1000 / 1000
Status
AC × 3
AC × 16
Set Name Test Cases
sample sample-01.txt, sample-02.txt, sample-03.txt
all sample-01.txt, sample-02.txt, sample-03.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, sample-01.txt, sample-02.txt, sample-03.txt
Case Name Status Exec Time Memory
01-01.txt AC 1 ms 256 KB
01-02.txt AC 1 ms 256 KB
01-03.txt AC 26 ms 127232 KB
01-04.txt AC 1 ms 256 KB
01-05.txt AC 26 ms 127232 KB
01-06.txt AC 35 ms 127616 KB
01-07.txt AC 71 ms 128000 KB
01-08.txt AC 72 ms 128384 KB
01-09.txt AC 72 ms 128384 KB
01-10.txt AC 72 ms 128384 KB
sample-01.txt AC 1 ms 256 KB
sample-02.txt AC 48 ms 127872 KB
sample-03.txt AC 21 ms 63744 KB