#67898 (C90) No.329 全射

• 問題: No.329 全射
• ユーザー: tails
• 提出日時: 2015-12-22 09:45:12
• 言語: C90 (gcc 11.4.0)
• 結果: WA
• 実行時間: -
• コード長: 894 bytes
• コンパイル時間: 179 ms
• コンパイル使用メモリ: 23,040 KB
• 実行使用メモリ: 7,528 KB
• 最終ジャッジ日時: 2024-09-18 18:33:03
• 合計ジャッジ時間: 5,826 ms
• ジャッジサーバーID （参考情報）: judge5 / judge4

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 6,816 KB
testcase_01	AC	1 ms; 6,944 KB
testcase_02	AC	1 ms; 6,944 KB
testcase_03	AC	1 ms; 6,940 KB
testcase_04	AC	1 ms; 6,944 KB
testcase_05	AC	1 ms; 6,944 KB
testcase_06	AC	1 ms; 6,940 KB
testcase_07	WA	-
testcase_08	AC	1 ms; 6,944 KB
testcase_09	AC	1 ms; 6,940 KB
testcase_10	AC	1 ms; 6,944 KB
testcase_11	AC	1 ms; 6,944 KB
testcase_12	WA	-
testcase_13	WA	-
testcase_14	WA	-
testcase_15	WA	-
testcase_16	WA	-
testcase_17	WA	-
testcase_18	WA	-
testcase_19	WA	-
testcase_20	WA	-
testcase_21	WA	-
testcase_22	WA	-
testcase_23	WA	-
testcase_24	WA	-
testcase_25	WA	-
testcase_26	WA	-
testcase_27	WA	-
testcase_28	WA	-
testcase_29	WA	-
testcase_30	WA	-
testcase_31	WA	-
testcase_32	WA	-
testcase_33	WA	-
testcase_34	WA	-
testcase_35	WA	-
testcase_36	WA	-
testcase_37	WA	-
testcase_38	WA	-
testcase_39	WA	-
testcase_40	WA	-
testcase_41	WA	-
testcase_42	WA	-

コンパイルメッセージ

main.c:3:1: warning: data definition has no type or storage class
    3 | noktbl[1010][1010];
      | ^~~~~~
main.c:3:1: warning: type defaults to ‘int’ in declaration of ‘noktbl’ [-Wimplicit-int]
main.c:4:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
    4 | nok(n,k){
      | ^~~
main.c: In function ‘nok’:
main.c:4:1: warning: type of ‘n’ defaults to ‘int’ [-Wimplicit-int]
main.c:4:1: warning: type of ‘k’ defaults to ‘int’ [-Wimplicit-int]
main.c: At top level:
main.c:11:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
   11 | pow(n,e)long long n;{
      | ^~~
main.c:11:1: warning: conflicting types for built-in function ‘pow’; expected ‘double(double,  double)’ [-Wbuiltin-declaration-mismatch]
main.c:1:1: note: ‘pow’ is declared in header ‘<math.h>’
  +++ |+#include <math.h>
    1 | #define mod 1000000007
main.c: In function ‘pow’:
main.c:11:1: warning: type of ‘e’ defaults to ‘int’ [-Wimplicit-int]
   11 | pow(n,e)long long n;{
      | ^~~
main.c: At top level:
main.c:15:1: warning: data definition has no type or storage class
   15 | w[210];ln[210][210];li[210];u[210];a[210];ai;
      | ^
main.c:15:1: warning: type defaults to ‘int’ in declaration of ‘w’ [-Wimplicit-int]
main.c:15:8: warning: data definition has no type or storage class
   15 | w[210];ln[210][210];li[210];u[210];a[210];ai;
      |        ^~
main.c:15:8: warning: type defaults to ‘int’ in declaration of ‘ln’ [-Wimplicit-int]
main.c:15:21: warning: data definition has no type or storage class
   15 | w[210];ln[210][210];li[210];u[210];a[210];ai;
      |                     ^~
main.c:15:21: warning: type defaults to ‘int’ in declaration of ‘li’ [-Wimplicit-int]
main.c:15:29: warning: data definition has no type or storage class
   15 | w[210];ln[210][210];li[210];u[210];a[210];ai;
      |                             ^
main.c:15:29: warning: type defaults to ‘int’ in declaration of ‘u

ソースコード

#define mod 1000000007

noktbl[1010][1010];
nok(n,k){
	if(!noktbl[n][k]){
		noktbl[n][k]=k==0||k==n?1:(nok(n-1,k)+nok(n-1,k-1))%mod;
	}
	return noktbl[n][k];
}

pow(n,e)long long n;{
	return e?(e&1?n:1)*pow(n*n%mod,e/2)%mod:1;
}

w[210];ln[210][210];li[210];u[210];a[210];ai;
rtbl[1010][1010];
main(i,j,k,l,m,n,r,s,t){
	scanf("%d%d",&n,&m);
	for(i=1;i<=n;++i)scanf("%d",w+i);
	for(k=0;k<m;++k){
		scanf("%d%d",&i,&j);
		ln[i][li[i]++]=j;
	}
	r=0;

	for(k=1;k<=n;++k){
		memset(u,0,sizeof u);
		u[k]++;
		ai=0;
		a[ai++]=k|w[k]<<8;
		while(ai){
			l=a[--ai];
			s=l>>8;
			l&=255;
			t=w[l];
			if(s>=t){
				if(!rtbl[s][t]){
					long long h=0;
					for(i=1;i<=t;++i){
						h=nok(t,i)*(int)pow(i,s)-h;
					}
					rtbl[s][t]=h%mod;
				}
				r=(r+rtbl[s][t])%mod;
				s=t;
			}
	
			for(i=0;j=ln[l][i];++i){
				if(!u[j]++){
					a[ai++]=j|s<<8;
				}
			}
		}
	}
	printf("%d",r);
	return 0;
}