if statement doesn't work on a triangle type function

I’m a complete newbie, so please excuse me.
I tried using online compiler but they unresponsive, and I get no return value (or return 0 for whatever I enter)

I tried to write a function that check if triangle is right, isosceles or both, and return 1,2,3 respectively, all other cases should return 0.

int main() {
    int TriangleType(unsigned angle1, unsigned angle2) {
        unsigned angleSum = angle1 + angle2;
        if (angleSum >= 180) {
            return 0;
        } 
    
        /* if triangle is right ---> */ 
        if (angle1==90 || angle2==90 || angleSum==90) {
            /*if it is also  an isosceles --->*/
            if (angle2==45 || angle1==45) {
                return 3;
            }  
            return 1;
        }
           
        /*check if it only a isosceles*/
        if (angle1==(180-angle2)/2 || 
            angle2== (180-angle1)/2 || 
            angle1==angle2) {
            return 2;
        } 
                
        return 0;
    }
    
    TriangleType(110, 111);
}

>Solution :

First, don’t try to use nested functions in C. Pulling that function out of main.

int TriangleType(unsigned angle1, unsigned angle2) {
    unsigned angleSum = angle1 + angle2;
    if (angleSum >= 180) {
        return 0;
    } 

    /* if triangle is right ---> */ 
    if (angle1==90 || angle2==90 || angleSum==90) {
        /*if it is also  an isosceles --->*/
        if (angle2==45 || angle1==45) {
            return 3;
        }  
        return 1;
    }
       
    /*check if it only a isosceles*/
    if (angle1==(180-angle2)/2 || 
        angle2== (180-angle1)/2 || 
        angle1==angle2) {
        return 2;
    } 
            
    return 0;
}

int main() {  
    TriangleType(110, 111);
}

Second, this doesn’t do anything with the return value from the function, so of course you see no output.

int main(void) {  
    switch (TriangleType(110, 111)) {
        case 1:
        printf("Right triangle\n");
        break;
        case 2:
        printf("Isosceles triangle\n");
        break;
        case 3:
        printf("Both types\n");
        break;
        default:
        printf("None of the above\n");
    }

    return 0;
}