main40.c

#include <stdio.h>

int main() {
    int row,i,j;
    printf("Enter no. of rows > ");
    scanf("%d",&row);
    for(i=row;i>=1;--i){
        for (j=1;j<=i;++j) {
            printf("%d ",j);
        }
        printf("\n");
    }
    return 0;
}