How can I concatenate a given string with a string I take as input?

Answer 1

you can use strcat function.

#include<string.h>
main()
{
char s1[100] , char s2[] = "string 2";
scanf ("%s", s1);
strcat(s1,s2);
}

in s1 string in we have to concatenate, s2 which string is to concatenate.
final concatenated string will be s1.

[EDIT]: or if you want to implement it from scratch, you can do it using loops.

Answer 2

you can use string function in c , like : strcat() function is used to join two strings,
https://www.programiz.com/c-programming/library-function/string.h/strcat

Answer 3

c

Answer 4

plz tell me using + operator

Answer 5

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>

int main() {
int i = 4;
double d = 4.0;
char s[] = "HackerRank ";
// Declare second integer, double, and String variables.
int a,j=0,k=0;
double b;
char c[105],s3[105];
// Read and save an integer, double, and String to your variables.
scanf("%d\n",&a);
scanf("%lf\n",&b);
scanf("%s",c);
//scanf("%*[^\n]%*c", &c);
// Print the sum of both integer variables on a new line.
printf("%d\n",i+a);
// Print the sum of the double variables on a new line.
printf("%.1f\n",d+b);
// Concatenate and print the String variables on a new line
// The 's' variable above should be printed first.

printf("%s",s);
printf("%s",c);
return 0;
}

Answer 6

You must enter an integer a double and a string. It will add the numbers and concatenate the strings. but in this case only first word of the string concatenates the rest don't. please correct it

Answer 7

different language has different ways to do.
specify for which language you are asking.

Answer 8

Naqvi Viyank c doesn't follow the oops concepts, so you can't overload the + operator in c,
but yes you can do it in cpp.
in python and some other languages, it's already handy given to you.