c program to concat two string without using concat function.

c program to concat two string without using concat function This program helps you to concat two string without using strcat() which is declared in string.h header file in c. #include <stdio.h> int main() { char s1[100], s2[100], i, j; printf("Enter first string: "); scanf("%s", s1); printf("Enter second string: "); scanf("%s", s2); // calculate the length of string s1 // and store it in i for(i = 0; s1[i] != '\0'; ++i); for(j = 0; s2[j] != '\0'; ++j, ++i) { s1[i] = s2[j]; } s1[i] = '\0'; printf("After concatenation: %s", s1); return 0; }