代码

#include <stdio.h>
#include <algorithm>
#include <string.h>
namespace judgeduck {
	extern char *stdin_content;
	extern int stdin_size;
	
	extern char *stdout_content;
	extern int stdout_size;
	extern int stdout_max_size;
}

int main() {
	*judgeduck::stdin_content = 123;
	return 0;
}

评测结果