結果
| 問題 | 
                            No.346 チワワ数え上げ問題
                             | 
                    
| コンテスト | |
| ユーザー | 
                             kapo
                         | 
                    
| 提出日時 | 2016-05-03 20:08:10 | 
| 言語 | C90  (gcc 12.3.0)  | 
                    
| 結果 | 
                             
                                TLE
                                 
                             
                            
                         | 
                    
| 実行時間 | - | 
| コード長 | 544 bytes | 
| コンパイル時間 | 188 ms | 
| コンパイル使用メモリ | 22,272 KB | 
| 実行使用メモリ | 10,496 KB | 
| 最終ジャッジ日時 | 2024-10-05 05:58:35 | 
| 合計ジャッジ時間 | 4,285 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge1 / judge5 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | -- * 3 | 
| other | AC * 20 TLE * 1 -- * 2 | 
コンパイルメッセージ
main.c: In function ‘main’:
main.c:14:9: warning: implicit declaration of function ‘scanf’ [-Wimplicit-function-declaration]
   14 |         scanf("%s", &a);
      |         ^~~~~
main.c:2:1: note: include ‘<stdio.h>’ or provide a declaration of ‘scanf’
    1 | #include <string.h>
  +++ |+#include <stdio.h>
    2 | 
main.c:14:9: warning: incompatible implicit declaration of built-in function ‘scanf’ [-Wbuiltin-declaration-mismatch]
   14 |         scanf("%s", &a);
      |         ^~~~~
main.c:14:9: note: include ‘<stdio.h>’ or provide a declaration of ‘scanf’
main.c:14:17: warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘char (*)[100001]’ [-Wformat=]
   14 |         scanf("%s", &a);
      |                ~^   ~~
      |                 |   |
      |                 |   char (*)[100001]
      |                 char *
main.c:16:26: warning: comparison between pointer and integer
   16 |         for( i = 0; a[i] != NULL; i++) {
      |                          ^~
main.c:24:26: warning: comparison between pointer and integer
   24 |         for( i = 0; s[i] != NULL; i++) {
      |                          ^~
main.c:27:44: warning: comparison between pointer and integer
   27 |                         for( j = i+1; s[j] != NULL; j++) {
      |                                            ^~
main.c:33:9: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration]
   33 |         printf("%.lf\n", sum);
      |         ^~~~~~
main.c:33:9: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
main.c:33:9: warning: incompatible implicit declaration of built-in function ‘printf’ [-Wbuiltin-declaration-mismatch]
main.c:33:9: note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
            
            ソースコード
#include <string.h>
double combi(int c)
{
	if( c < 2 ) return 0;
	return (double)c*((double)c-1)/2;
}
int main(void)
{
	int i, j;
	double sum = 0;
	char s[100001] = {'\0'}, a[100001];
	scanf("%s", &a);
	for( i = 0; a[i] != NULL; i++) {
		if( a[i] == 'w' ) {
			strcat(s, "w");
		} else if ( a[i] == 'c' ) {
			strcat(s, "c");
		}
	}
	for( i = 0; s[i] != NULL; i++) {
		if( s[i] == 'c' ) {
			int wc = 0;
			for( j = i+1; s[j] != NULL; j++) {
				if( s[j] == 'w' ) wc++;
			}
			sum += combi(wc);
		}
	}
	printf("%.lf\n", sum);
	return 0;
}
            
            
            
        
            
kapo