Today I'm going to introduce you 2 new functions from the "string.h" library: "strcpy" which copies the content of a string in another one and "strcat" which concatenates 2 strings.
I can't show you the syntax of these to functions better than with an example, so let's try to solve the following problem: In the input file there are 2 strings, "x" and "y". You have to create a "z" string with the content from the "x" string, followed by the content from the "y" string and between them the word "and". After that, print on the screen the 3 strings
problem.in
apples
pears
problem.out
the x string is apples
the y string is pears
the z string is apples and pears
Here you are the source-code for the problem, using the 2 functions:
#include <string.h>
#include <stdio.h>
int main ()
{
freopen("problem.in", "r", stdin);
freopen("problem.out", "w", stdout);
char x[1000],y[1000],z[1000];
int i;
//now we'll read the 2 strings from the input file
gets(x);
gets(y);
//in the next we'll copy the string "x" in the string "z"