Why is my code red in ++?

[lilac knoll]

#include<stdio.h>

int main(){
    float d,e;

    d = ++5 *3 / 6 % 7;
    e = 3 * 2++ -4 * 7;

    return 0;
}

[hazy creek]

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[serene quest]

You can't ++5.

It's for changing the value of a variable. 5 is not a variable.

[lilac knoll]

ah I should have made a variable, is it like this?

#include<stdio.h>

int main(){
    float d,e;
    int i=5, u=2;

    d = ++i *3 / 6 % 7;
    e = 3 * u++ -4 * 7;

    return 0;
}

[serene quest]

Yes.

[lilac knoll]

oky thanks

!solved