C program to draw Square or Triangle shapes using multiple choice

Here is another C program to draw a Square or Triangle shape based on the user’s choice. This program will ask the user whether he wants to draw a Square or a Rectable and based on the option he selected, the program would print the pattern.

C Program:

#include <stdio.h>

void drawSquare(int size) {
    for (int i = 0; i < size; i++) {
        for (int j = 0; j < size; j++) {
            printf("* ");
        }
        printf("\n");
    }
}

void drawTriangle(int size) {
    for (int i = 1; i <= size; i++) {
        for (int j = 1; j <= i; j++) {
            printf("* ");
        }
        printf("\n");
    }
}

int main() {
    int choice, size;
    printf("Choose the shape to draw:\n");
    printf("1. Square\n");
    printf("2. Triangle\n");
    scanf("%d", &choice);

    printf("Enter the size of the shape: ");
    scanf("%d", &size);

    switch (choice) {
        case 1:
            drawSquare(size);
            break;
        case 2:
            drawTriangle(size);
            break;
        default:
            printf("Invalid choice!\n");
            break;
    }

    return 0;
}

Based on user choice, The program calls the drawSquare or the drawTriangle function and then it draws the shapes using ASCII characters.

This program can be used in schools /colleges. Hope this helped you.