#include <string.h>#include <stdio.h>int main () { char string[]="1234"; int size=strlen(string); int i; printf("size of %s is %d\n",string,size); for (i=0; i<size; i++) { printf("string[%d] is %c\t",i,string[i]); string[size]=string[i]; printf("string[%d] is %c\t",size,string[size]); string[i]=string[size-i]; printf("string[%d] is %c\t",i,string[i]); string[size-i]=string[size]; printf("string[%d] is %c\n",size-i,string[size-i]); } string[size]=0; printf("size of %s is %d\n",string,size);}