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   | #include <stdio.h> int main() { 	int i;
  	char a[5] = { "zhan" }; 	char b[5] = {"1234"}; 	int a_length = sizeof(a) / sizeof(a[0]); 	for (i = 0; i < a_length; i++) 	{ 		int temp; 		temp = a[i]; 		a[i] = b[i]; 		b[i] = temp; 	} 	printf("%s\n", a); 	printf("%s\n", b); 	system("pause");         return 0; }
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