#215170 (C) No.243 出席番号(2)

• 問題: No.243 出席番号(2)
• ユーザー: testestest
• 提出日時: 2017-11-09 01:47:35
• 言語: C (gcc 12.3.0)
• 結果: AC
• 実行時間: 131 ms / 2,000 ms
• コード長: 269 bytes
• コンパイル時間: 765 ms
• コンパイル使用メモリ: 30,208 KB
• 実行使用メモリ: 5,376 KB
• 最終ジャッジ日時: 2024-05-03 07:56:18
• 合計ジャッジ時間: 2,791 ms
• ジャッジサーバーID （参考情報）: judge1 / judge3

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 5,248 KB
testcase_01	AC	1 ms; 5,248 KB
testcase_02	AC	1 ms; 5,376 KB
testcase_03	AC	7 ms; 5,376 KB
testcase_04	AC	7 ms; 5,376 KB
testcase_05	AC	6 ms; 5,376 KB
testcase_06	AC	6 ms; 5,376 KB
testcase_07	AC	6 ms; 5,376 KB
testcase_08	AC	22 ms; 5,376 KB
testcase_09	AC	22 ms; 5,376 KB
testcase_10	AC	22 ms; 5,376 KB
testcase_11	AC	22 ms; 5,376 KB
testcase_12	AC	22 ms; 5,376 KB
testcase_13	AC	47 ms; 5,376 KB
testcase_14	AC	48 ms; 5,376 KB
testcase_15	AC	48 ms; 5,376 KB
testcase_16	AC	48 ms; 5,376 KB
testcase_17	AC	48 ms; 5,376 KB
testcase_18	AC	84 ms; 5,376 KB
testcase_19	AC	84 ms; 5,376 KB
testcase_20	AC	83 ms; 5,376 KB
testcase_21	AC	84 ms; 5,376 KB
testcase_22	AC	84 ms; 5,376 KB
testcase_23	AC	131 ms; 5,376 KB
testcase_24	AC	131 ms; 5,376 KB
testcase_25	AC	129 ms; 5,376 KB
testcase_26	AC	130 ms; 5,376 KB
testcase_27	AC	130 ms; 5,376 KB
testcase_28	AC	1 ms; 5,376 KB
testcase_29	AC	1 ms; 5,376 KB
testcase_30	AC	1 ms; 5,376 KB
testcase_31	AC	1 ms; 5,376 KB
testcase_32	AC	1 ms; 5,376 KB

コンパイルメッセージ

main.c:1:1: warning: data definition has no type or storage class
    1 | P=1e9+7;
      | ^
main.c:1:1: warning: type defaults to 'int' in declaration of 'P' [-Wimplicit-int]
main.c:2:1: warning: data definition has no type or storage class
    2 | a[6000],n,t,ans,i,k;
      | ^
main.c:2:1: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
main.c:2:9: warning: type defaults to 'int' in declaration of 'n' [-Wimplicit-int]
    2 | a[6000],n,t,ans,i,k;
      |         ^
main.c:2:11: warning: type defaults to 'int' in declaration of 't' [-Wimplicit-int]
    2 | a[6000],n,t,ans,i,k;
      |           ^
main.c:2:13: warning: type defaults to 'int' in declaration of 'ans' [-Wimplicit-int]
    2 | a[6000],n,t,ans,i,k;
      |             ^~~
main.c:2:17: warning: type defaults to 'int' in declaration of 'i' [-Wimplicit-int]
    2 | a[6000],n,t,ans,i,k;
      |                 ^
main.c:2:19: warning: type defaults to 'int' in declaration of 'k' [-Wimplicit-int]
    2 | a[6000],n,t,ans,i,k;
      |                   ^
main.c:4:1: warning: return type defaults to 'int' [-Wimplicit-int]
    4 | main(){
      | ^~~~
main.c: In function 'main':
main.c:5:9: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |         scanf("%d",&n);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | P=1e9+7;
main.c:5:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |         scanf("%d",&n);
      |         ^~~~~
main.c:5:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:10:9: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   10 |         printf("%d",(ans+P)%P);
      |         ^~~~~~
main.c:10:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:10:9: warning: incompatible implicit declaration of built-in function 'p

ソースコード

P=1e9+7;
a[6000],n,t,ans,i,k;
long dp[6000],f;
main(){
	scanf("%d",&n);
	for(;~scanf("%d",&t);)a[t]++;
	f=dp[0]=1;
	for(k=0;k<n;k++)for(i=k;i>=0;i--)dp[i+1]=(dp[i+1]+dp[i]*a[k])%P;
	for(i=0;i<=n;f=(f*++i)%P)ans=(ans+(n-i&1?-1:1)*f*dp[n-i])%P;
	printf("%d",(ans+P)%P);
}