Can someone recover this code ?

Question

I can not understand how can check a and b to print them the screen ?
https://code.sololearn.com/cMg1WqhqJS7C/?ref=app

Answer 1

#include <stdio.h>

int compareString(char *first, char *second) {
int a = 0, b = 0, result = 0;
while (*first != '\0') {
first++; // just address increment
a++;
}
while (*second != '\0') {
second++; // just address increment
b++;
}

if (a == b) {
result = 0;
}
else if (a < b) {
result = -1;
}
else if (a > b) {
result = 1;
}
return result;
}

int main() {

char first[1000],
second[1000];
printf("Enter your string :\n");
gets(first);

printf("Enter your string :\n");
gets(second);

switch (compareString(first, second)) {
case -1:
printf("first < second\n");
break;
case 0:
printf("first == second\n");
break;
case 1:
printf("first > second\n");
break;
}
return 0;
}

Sample outputs:

Enter your string : aa
Enter your string : aaa
first < second

Enter your string : aaa
Enter your string : aa
first > second

Enter your string : aa
Enter your string : aa
first == second

Answer 2

The length differences just count. It doesn't take into account the difference in letters. In fact the above function acts like std::string::compare() in C++.

https://en.cppreference.com/w/cpp/string/basic_string/compare

Answer 3

It's possible, indeed.

Answer 4

Enter your string :welcome
Enter your string :goodbye

The length of both strings is 7
But the letter `w` has higher ASCII value compare to `g`
So, first string > second string

Is this what you are looking for?

Answer 5

You can simply replace the `printf`s texts with your favorite replacement like this:

switch (compareString(first, second)) {
case -1:
printf("-1\n");
break;
case 0:
printf("0\n");
break;
case 1:
printf("1\n");
break;
}

Answer 6

Or even simpler

printf ("%d", compareString(first, second));

Answer 7

Yes, because all you need to know is the integer result of the comparison, a single `printf` statement as above would be sufficient. It prints out

`-1` when first < second
`0` when first == second
`1` when first > second

as simple as that.

Answer 8

Thank both of youu 👍 :))

Answer 9

Okey I will try thank you :))

Answer 10

Sorry donna I didn't kniw that my code's setting I edit it as a public but I think Babak has solved the problem

Answer 11

Does it work for just same characters or could it work for different ones ?

Answer 12

You wrote aa and aaa as an example it will work for jdhddj and jshdr ?

Answer 13

Can't we write this program in C ?This is my homework and I want to compare the letters of two words

Answer 14

Sample output:
Enter your string :welcome
Enter your string :goodbye
O

Like this

Answer 15

No just number of letters

Answer 16

When the two word are equal number of letters I wanna print them to screen 0

Answer 17

When the number of first word greater than second I wanna print them to screen 1

Answer 18

When the number of second word greater than first one I wanna print to screen -1

Answer 19

Could I explain ?

Answer 20

If I change switch case section as this it will be true ?