Submission #20176

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
20176	2016-03-01T10:50:14 Z	rlatnwls	괄호 (kriii4_R)	C++	0 / 100	489 ms	1080 KB

R

#include<cstdio>

int res = 1;
int i = 1;
int j = 1;
int res2 = 1;
int n= 0 , m = 0;
int gop1(int g){
	for(i; i <= (g/2)+1; i++)
		res = (res* i)%1000000007;
	return res;
}
int gop2(int g){
	i = g/2+2;
	for(i; i<= g; i++){
		res = (res* i)%1000000007;
	}
	return res;
}
int gop3(int g){
	for(j ; j <=g/2; j++){
		res2 = (res*m)%1000000007;
	}
	return res2;
}
int main(){
	
	scanf("%d %d",&n, &m);
	int num = 1;
	int s = m;
	for(num ; num != n; num++){
		if(num%2 == 1)
			s = ((m+1)*s)%1000000007 ;
		else{
			int x1 = gop1(num);
			int x2 = gop2(num);
			int x3 = gop3(num);
			s = ((m+1)*s)%1000000007 - (x3*(x2/x1)%1000000007);
		}
	}
	printf("%d", s);

}

Subtask #1

0.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	489 ms	1080 KB	SIGFPE Floating point exception
2	Halted	0 ms	0 KB	-

Subtask #2

0.0 / 92.0

#	Verdict	Execution time	Memory	Grader output
1	Halted	0 ms	0 KB	-