Example: Pascal Triangle in C Program using For loop of Numbers

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// Pascal Triangle in C Program using For loop of Numbers
#include <stdio.h>

int main() {
    int r, co = 1, ws, i, j;
    // r - To store the number of rows
    // co - To store the coefficient value
    // ws - To store the white space

    printf("-----Enter the number of rows to print the pattern-----\n");
    scanf("%d", &r);

    printf("\n-----This is the pascal triangle pattern-----\n\n");
    for (i = 0; i < r; i++) {
    	printf("\t");
        for (ws = 1; ws <= r - i; ws++)
            printf("  ");
        for (j = 0; j <= i; j++) {
            if (j == 0 || i == 0)
                co = 1;
            else
                co = co * (i - j + 1) / j;
            printf("%4d", co);
        }
        printf("\n");
    }
    return 0;
}