学步园

原题链接

在win7下测试老是不对，后来注意到，win下汉字占2字节，ubuntu是3字节。

#include <stdio.h>
#include <string.h>
char str[300], sam[] = "你我";

int main(){
	int len, i;
	while(scanf("%s", str)){
		len = strlen(str);
		if(len == 1 && str[0] == '0')
			break;
		for(i = 0; i != len; ++i)
			if(str[i] == sam[0] && str[i+ 1] == sam[1] && str[i + 2] == sam[2])
				str[i] = sam[3], str[i + 1] = sam[4], str[i + 2] = sam[5], i += 2;
			else if(str[i] == sam[3] && str[i+ 1] == sam[4] && str[i + 2] == sam[5])
				str[i] = sam[0], str[i + 1] = sam[1], str[i + 2] = sam[2], i += 2;
		puts(str);
	}
	return 0;
}