#include<stdio.h> #define MAX_LEN 10 char *LowerCase(char *s); int main( ) { char str[MAX_LEN); printf("Enter a string:"); scanf("%s",str); printf("Lowercase:*s\n",LowerCase(str)); } char *Lowercase(chars){ char newStrf[MAX_LEN]; int index; for(index=0;index<[MAX_LEN];index++){ if(A'<=s[index]&&s[index]<='Z') newstr[index]=s[index)+('a'-'A'); else newstr[index]=s[index]; } return newstr; }