#include <stdio.h>
#include <stdlib.h>

void right(int p) {   // GOOD
    int a;   // OK because it is definitely initialized in the if or the
             // else, and there is no good default.,
    if(p > 0) {
        a = p * 10;
    }
    else {
        a = p / 10;
    }
}

void right_2(int p) {   // GOOD
    int a = p / 10; // Use this form if you have a natural "default" value
    if(p > 0) {
        a = p * 10;
    }
    // READABILITY and MAINTAINABILITY always take precedence over brevity.
}

void wrong_3() {
    double d = 0;
    d = 15;
}

void right_3() {
    double d = 15;
}

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