C programming Strings printing

Question

I have a question on this string .

for example:

char ex1[20]="Hello hi";
int choose;
scanf("%d",&choose);

What should I do to make it print "hi" when user enters 1 and "hello" would be printed if he enters 0?

Thank you for your help.

Answer 1

I guess you want this.

#include<stdio.h>
#include<string.h>
void split(char*str, char** arr) {
    char* str2 = strstr(str, " ");
    *str2 = '\0';
    str2++;
    arr[0] = str;
    arr[1] = str2;
}
int main(void) {
    char ex1[20] = "Hello hi";

    char*arr[2];
    split(ex1, arr);

    int choose;
    scanf("%d", &choose);
    switch (choose) {
    case 0:
        puts(arr[0]);
        break;
    case 1:
        puts(arr[1]);
    }

    return 0;
}

The results are as follows