AtCoder Beginner Contest 003

Submission #1247741

Source codeソースコード

#include<stdio.h>
int mbk(long long a,int n,int m){return n?(mbk((a*a)%m,n/2,m)*(n%2?a:1))%m:1;}
int inv(int a,int m){return mbk((long long)a,m-2,m);}
int aCb(int a,int b,int m){
  long long s=1,i;
	if(a<b)return 0;
  if(b>a-b)b=a-b;
  for(i=0;i<b;i++)s=(((s*(a-i))%m)*inv(i+1,m))%m; //printf("%dC%d=%d->",a,b,s); 
  return (int)s;
}
int x,y,a,b;
long long f(int i,int j){return aCb((x-i)*(y-j),a+b,1e9+7);}
int main(){
	int h,w,c;
	long long d=1,M=1e9+7;
	scanf("%d %d %d %d %d %d",&w,&h,&x,&y,&a,&b);
	c=(h-y+1LL)*(w-x+1LL)%M;
	if(x*y-a-b){
		d=f(0,0);
		d=(d+4*f(1,1)+M*4)%M;//printf("%lld\n",d);
		d=(d-2*f(1,0)+M*2)%M;//printf("%lld\n",d);
		d=(d-2*f(0,1)+M*2)%M;//printf("%lld\n",d);
		d=(d+f(2,0))%M;//printf("%lld\n",d);
		d=(d+f(0,2))%M;//printf("%lld\n",d);
		d=(d-2*f(2,1)+M*2)%M;//printf("%lld\n",d);
		d=(d-2*f(1,2)+M*2)%M;//printf("%lld\n",d);
		d=(d+f(2,2))%M;//printf("%lld\n",d);
	}//printf("%lld\n",d);
	d=d*aCb(a+b,a,M)%M;//printf("%lld %d\n",d,c);
	printf("%lld\n",c*d%M);
	return 0;
}
	

Submission

Task問題 D - AtCoder社の冬
User nameユーザ名 T.M
Created time投稿日時
Language言語 C (GCC 5.4.1)
Status状態 AC
Score得点 101
Source lengthソースコード長 1039 Byte
File nameファイル名
Exec time実行時間 3 ms
Memory usageメモリ使用量 128 KB

Compiler messageコンパイルメッセージ

./Main.c: In function ‘main’:
./Main.c:16:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d %d %d %d %d %d",&w,&h,&x,&y,&a,&b);
^

Test case

Set

Set name Score得点 / Max score Cases
sub 100 / 100 00_sample_01E.txt,00_sample_02E.txt,00_sample_03E.txt,test_03E.txt,test_04E.txt,test_07E.txt,test_08E.txt,test_11E.txt,test_12E.txt,test_15E.txt,test_16E.txt,test_19E.txt,test_20E.txt,test_23E.txt,test_24E.txt,test_27E.txt,test_28E.txt,test_31E.txt,test_32E.txt,test_36E.txt,test_37E.txt,test_38E.txt,test_39E.txt,test_45E.txt,test_47E.txt
All 1 / 1 00_sample_01E.txt,00_sample_02E.txt,00_sample_03E.txt,00_sample_04.txt,test_01.txt,test_02.txt,test_03E.txt,test_04E.txt,test_05.txt,test_06.txt,test_07E.txt,test_08E.txt,test_09.txt,test_10.txt,test_11E.txt,test_12E.txt,test_13.txt,test_14.txt,test_15E.txt,test_16E.txt,test_17.txt,test_18.txt,test_19E.txt,test_20E.txt,test_21.txt,test_22.txt,test_23E.txt,test_24E.txt,test_25.txt,test_26.txt,test_27E.txt,test_28E.txt,test_29.txt,test_30.txt,test_31E.txt,test_32E.txt,test_33.txt,test_34.txt,test_35.txt,test_36E.txt,test_37E.txt,test_38E.txt,test_39E.txt,test_40.txt,test_41.txt,test_42.txt,test_43.txt,test_44.txt,test_45E.txt,test_46.txt,test_47E.txt,test_48.txt

Test case

Case name Status状態 Exec time実行時間 Memory usageメモリ使用量
00_sample_01E.txt AC 1 ms 128 KB
00_sample_02E.txt AC 1 ms 128 KB
00_sample_03E.txt AC 1 ms 128 KB
00_sample_04.txt AC 2 ms 128 KB
test_01.txt AC 1 ms 128 KB
test_02.txt AC 1 ms 128 KB
test_03E.txt AC 1 ms 128 KB
test_04E.txt AC 1 ms 128 KB
test_05.txt AC 1 ms 128 KB
test_06.txt AC 2 ms 128 KB
test_07E.txt AC 1 ms 128 KB
test_08E.txt AC 1 ms 128 KB
test_09.txt AC 1 ms 128 KB
test_10.txt AC 1 ms 128 KB
test_11E.txt AC 1 ms 128 KB
test_12E.txt AC 1 ms 128 KB
test_13.txt AC 1 ms 128 KB
test_14.txt AC 1 ms 128 KB
test_15E.txt AC 1 ms 128 KB
test_16E.txt AC 1 ms 128 KB
test_17.txt AC 1 ms 128 KB
test_18.txt AC 1 ms 128 KB
test_19E.txt AC 1 ms 128 KB
test_20E.txt AC 1 ms 128 KB
test_21.txt AC 1 ms 128 KB
test_22.txt AC 2 ms 128 KB
test_23E.txt AC 1 ms 128 KB
test_24E.txt AC 1 ms 128 KB
test_25.txt AC 1 ms 128 KB
test_26.txt AC 1 ms 128 KB
test_27E.txt AC 1 ms 128 KB
test_28E.txt AC 1 ms 128 KB
test_29.txt AC 2 ms 128 KB
test_30.txt AC 3 ms 128 KB
test_31E.txt AC 1 ms 128 KB
test_32E.txt AC 1 ms 128 KB
test_33.txt AC 1 ms 128 KB
test_34.txt AC 1 ms 128 KB
test_35.txt AC 1 ms 128 KB
test_36E.txt AC 1 ms 128 KB
test_37E.txt AC 1 ms 128 KB
test_38E.txt AC 1 ms 128 KB
test_39E.txt AC 1 ms 128 KB
test_40.txt AC 1 ms 128 KB
test_41.txt AC 1 ms 128 KB
test_42.txt AC 1 ms 128 KB
test_43.txt AC 1 ms 128 KB
test_44.txt AC 1 ms 128 KB
test_45E.txt AC 1 ms 128 KB
test_46.txt AC 1 ms 128 KB
test_47E.txt AC 1 ms 128 KB
test_48.txt AC 1 ms 128 KB