#178995 (C) No.528 10^9と10^9+7と回文

• 問題: No.528 10^9と10^9+7と回文
• ユーザー: 👑 testestest
• 提出日時: 2017-06-10 00:08:12
• 言語: C (gcc 12.3.0)
• 結果: AC
• 実行時間: 3 ms / 1,000 ms
• コード長: 377 bytes
• コンパイル時間: 258 ms
• コンパイル使用メモリ: 30,592 KB
• 実行使用メモリ: 6,948 KB
• 最終ジャッジ日時: 2024-07-23 18:30:09
• 合計ジャッジ時間: 1,175 ms
• ジャッジサーバーID （参考情報）: judge2 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 6,812 KB
testcase_01	AC	1 ms; 6,812 KB
testcase_02	AC	1 ms; 6,940 KB
testcase_03	AC	1 ms; 6,944 KB
testcase_04	AC	1 ms; 6,940 KB
testcase_05	AC	1 ms; 6,940 KB
testcase_06	AC	1 ms; 6,940 KB
testcase_07	AC	1 ms; 6,944 KB
testcase_08	AC	1 ms; 6,944 KB
testcase_09	AC	1 ms; 6,940 KB
testcase_10	AC	3 ms; 6,940 KB
testcase_11	AC	3 ms; 6,940 KB
testcase_12	AC	3 ms; 6,944 KB
testcase_13	AC	3 ms; 6,940 KB
testcase_14	AC	3 ms; 6,944 KB
testcase_15	AC	2 ms; 6,940 KB
testcase_16	AC	2 ms; 6,940 KB
testcase_17	AC	2 ms; 6,944 KB
testcase_18	AC	3 ms; 6,944 KB
testcase_19	AC	1 ms; 6,940 KB
testcase_20	AC	3 ms; 6,940 KB
testcase_21	AC	2 ms; 6,948 KB
testcase_22	AC	1 ms; 6,944 KB
testcase_23	AC	1 ms; 6,944 KB
testcase_24	AC	1 ms; 6,944 KB
testcase_25	AC	1 ms; 6,944 KB
testcase_26	AC	3 ms; 6,944 KB
testcase_27	AC	3 ms; 6,944 KB

コンパイルメッセージ

main.c:2:1: warning: data definition has no type or storage class
    2 | M=1e9,k;
      | ^
main.c:2:1: warning: type defaults to 'int' in declaration of 'M' [-Wimplicit-int]
main.c:2:7: warning: type defaults to 'int' in declaration of 'k' [-Wimplicit-int]
    2 | M=1e9,k;
      |       ^
main.c: In function 'p':
main.c:3:6: warning: type of 'a' defaults to 'int' [-Wimplicit-int]
    3 | long p(a,n,m){return n?p(1L*a*a%m,n/2,m)*(n&1?a:1)%m:1;}
      |      ^
main.c:3:6: warning: type of 'n' defaults to 'int' [-Wimplicit-int]
main.c:3:6: warning: type of 'm' defaults to 'int' [-Wimplicit-int]
main.c: At top level:
main.c:4:1: warning: return type defaults to 'int' [-Wimplicit-int]
    4 | g(){
      | ^
main.c:11:1: warning: return type defaults to 'int' [-Wimplicit-int]
   11 | f(m){
      | ^
main.c: In function 'f':
main.c:11:1: warning: type of 'm' defaults to 'int' [-Wimplicit-int]
main.c: At top level:
main.c:16:1: warning: return type defaults to 'int' [-Wimplicit-int]
   16 | main(){
      | ^~~~
main.c: In function 'main':
main.c:17:9: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
   17 |         scanf("%s",num);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | char num[100010];
main.c:17:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   17 |         scanf("%s",num);
      |         ^~~~~
main.c:17:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:18:11: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
   18 |         k=strlen(num);
      |           ^~~~~~
main.c:1:1: note: include '<string.h>' or provide a declaration of 'strlen'
  +++ |+#include <string.h>
    1 | char num[100010];
main.c:18:11: warning: incompatible implicit declaration of built-in function 'strlen' [-Wbuiltin-declaration-mismatch]
   18 |         k=s

ソースコード

char num[100010];
M=1e9,k;
long p(a,n,m){return n?p(1L*a*a%m,n/2,m)*(n&1?a:1)%m:1;}
g(){
	for(int l=(k-1)/2,r=k/2;l>=0;l--,r++){
		if(num[l]<num[r])return 0;
		if(num[l]>num[r])return 1;
	}
	return 0;
}
f(m){
	long s=0;
	for(int i=0;i<k-k/2;i++)s=(s*10+num[i]-'0')%m;
	return(p(10,k/2,m)+s+~g()+m)%m;
}
main(){
	scanf("%s",num);
	k=strlen(num);
	printf("%d\n%d",f(M),f(M+7));
}