[Solved] How make this code shorter and accurate this code is just a basic code how to make it more efficient [closed]

by


Indentation for the logical if-else block is misplaced.Also no input was taken for height variable.

#include<stdio.h>
int main(){
    float a, pi = 3.14, r, c, d, h;
    printf("Program to calculate area of circle and volume of cylinder \n");
    printf("select what you want to find?\n1.Area of circle\n2.Volume of cylinder\n");
    scanf("%f", &c);
    if (c == 1)
    {
        printf("Select unit\n1.CM\n2.Meter\n ");
        scanf("%f", &d);
        if (d == 1)
        {
            printf("enter radius in cm\n");
            scanf("%f", &r);
            a = (pi * r * r) / 100;
            printf("the area of circle is \n%f cm", a);
        }
        if (d == 2)
        {
            printf("enter radius in meter\n");
            scanf("%f", &r);
            a = pi * r * r;
            printf("the are of circle is \n%f meter", a);
        }
    }
    else #This block is indented.
    {
        if (c == 2)
        {
            printf("select unit\n1.cm\n2.meter\n");
            scanf("%f", &d);
        }
        if (d == 1)
        {
            printf("enter radius in cm\n");
            scanf("%f", &r);
            printf("enter height in cm\n");
            scanf("%f", &h);
            a = (pi * r * r * h) / 100;
            printf("the volume of cylinder is\n%f cm", a);
        }
        if (d == 2)
        {
            printf("enter radius in meter \n");
            scanf("%f", &r);
            printf("enter the height of cylinder in meter \n");
            scanf("%f", &h); #This is added
            a = pi * r * r * h;
            printf("the volume of cylinder is\n%f meter", a);
        }
    }
    
    return 0;
}

solved How make this code shorter and accurate this code is just a basic code how to make it more efficient [closed]