For-loop pattern that increments the last column by 1

February 19, 2022

I am trying to make a for-loop program that prints the same digits or integers every row except the last column which is being incremented by 1.

Example:

     1 1 1 1 1 2

     2 2 2 2 2 3

     3 3 3 3 3 4

     4 4 4 4 4 5

Here is my code

int main(){
int num,value;
scanf("%d", &num);

for(int i=1; i<=num; i++){
    for(int j=i; j < i+num; j++){
        value = i;
        printf("%d ", value);
    }

    printf("\n");
}

return 0;

I have also tried doing this

int num,value;
scanf("%d", &num);

for(int i=1; i<=num; i++){
    for(int j = i; j < i+num; j++){
        value = i;
        if(value < j){
            value+=1;
        }
        printf("%d ", value);
    }

    printf("\n");
}

return 0;

However, I got this as a result

   1 2 2 2 2 2

   2 3 3 3 3 3

   3 4 4 4 4 4

   4 5 5 5 5 5

>Solution :

I didn’t understand how you are getting those two extra columns, but to get the last column as 1 incremented you can simply use this.

for(int i=1; i<=num; i++){
    for(int j = i; j < i+num; j++){
        if(j==(i+num)-1)
            printf("%d ",i+1);
        else
            printf("%d ", i);
    }

    printf("\n");
}