Probably a basic question, but...

I don't understand how I could make a program repeat itself.

The entire program, or most of for at least.

This is the program:

Code:

---

#include <stdio.h>

int main()
{
    int x;
   
    printf("Please guess the Number.\n The number is under 120.\n ");
    scanf( "%d", &x );
    getchar();
         
    if ( "%d", x != 90 ) {
        printf("You entered %d . This number is wrong. Press enter to continue.", x );
    getchar(); }
   
    else {
        printf("You found out the number! Press enter to continue. ", x );
        getchar();
       
        }
    return 0;
}

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I just need a way to make the program ask you to guess the number until you eventually guess it.

BTW this is just a random proof project, something to prove to myself I know what I'm doing, which apparently I'm not.

I understand I might be able to implement this with while, for, or do..while, but I don't understand who I could implement that.

Any help/solutions would be appreciated!

A while loop would be an option:

Code:

---

while(x != 90) {
  /* Do something */
}

---

you can use...............

Code:

---

while(1){
//do something
if(some condition) break;
//do something
}

---

take a flag. initialise it to zero. if the user guesses the ans flag=1.
use do while and continue till flag =1. could use goto instead of flag but thts bad prograamin pract rite?

It's much better to use a while loop than goto[s].

Quote:

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I understand I might be able to implement this with while, for, or do..while, but I don't understand [how] I could implement that.

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Try a program like this:

Code:

---

#include <stdio.h>

int main(void) {
    int input;

    do {
        printf("\nEnter a number to square (0 to quit): ");
        scanf("&i", &input);
        printf("%i squared is %i\n", input, input * input);
    } while(input != 0);

    return 0;
}

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You might also want to look into the break statement.

Quote:

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Try a program like this:

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That program will just throw the user in an endless loop. There's an error in the scanf() statement.