Qfyilyi

How do i write this line correctly?

if(a + b + c = 180)

This is my code. I need to do a + b + c in the if-statement:

#include <stdio.h>



int main()

{

    int A;

    int B;

    int C;

    int triagolnik = 180;



    scanf("%d %d %d", &A, &B, &C);



    if (A + B + C = triagolnik)

        printf("DAn");



    if (A, B, C = 80)  // I want to make a + b + c = 80 but i don't know the right line

        printf("PRAVOAGOLEN");



    return 0;

}

As other people suggested you should be using == to compare, = is used to assign values to variables. As it seems to me, A, B and C are angles and the first check that you do is that you check if it is the case of valid triangle. If that's the case simply apply the suggested modification:

if (A + B + C == triagolnik)

    printf("DAn");

In the second check, thanks to the same language, I seem to understand that you want to check whether the triangle is right one. If that's the case I don't see why you are mentioning the number 80, as the correct one should be 90. The correct check for right triangle would be:

if (A + B + C == triagolnik && (A == 90 || B == 90 || C == 90))

    printf("PRAVOAGOLENn");