pattern: parallelogram

#include<stdio.h>
int main(){
    int col;
    printf("Enter number of columns: ");
    scanf("%d", &col);

    for(int i=1; i<=4; i++){
        for(int j=1; j < i; j++){printf(" ");}
        for(int j =1; j <= col; j++){printf("*");}
        printf("\n");
    }

    return 0;
}