So I have a homework wherein I have to convert integer numbers to roman numerals. The code I use is this:

#include <stdio.h>

int main(){
    
    int N, i, a, num;
    
    (1<=N<=3000);
    
    scanf("%d", &N);
    for(i=0; i<N; i  ){
        scanf("%d", &num);
        
        while (num != 0){
            if (num>=1000){
                printf("M\n");
                num -= 1000;
            }
            else if (num>=900){
                printf("CM\n");
                num -= 900;
            }
            else if (num>=500){
                printf("D\n");
                num -= 500;
            }
            else if (num>=400){
                printf("CD\n");
                num -= 400;
            }
            else if (num>=100){
                printf("C\n");
                num -= 100;
            }
            else if (num>=90){
                printf("XC\n");
                num -= 90;
            }
            else if (num>=50){
                printf("L\n");
                num -= 50;
            }
            else if (num>=40){
                printf("XL\n");
                num -= 40;
            }
            else if (num>=10){
                printf ("X\n");
                num -= 10;
            }
            else if (num>=9){
                printf ("IX\n");
                num -= 9;
            }
            else if (num>=5){
                printf ("V\n");
                num -= 5;
            }
            else if (num>=4){
                printf ("IV\n");
                num -= 4;
            }
            else if (num>=1){
                printf ("I\n");
                num -= 1;
            }
        }
        **printf("\n");**
    }
    return 0;
}

but the result of the code would be this: result

I know I can remove the \n so it fixes the spacing, but we are required for the input to be in a new line, so if I remove the \n, the number I'll input will be next to the roman numeral instead of below it. For example, like this: result without \n

What I want it to do is for the roman numerals to be in one line, but I can't for the life of me find a way to do it.

solved: added "printf(\n)" after the while loop

CodePudding user response：

You can remove the \n in all of the printf, and then add a single printf("\n") after the while loop.

CodePudding user response：

Of course if it works:

#include <stdio.h>

int main(void)
{
    int N, i, num;

    scanf("%d", &N);

    for(i=0; i<N; i  )
    {
        scanf("%d", &num);

        while (num != 0)
        {
            if (num>=1000)
            {
                printf("M");
                num -= 1000;
            }
            else if (num>=900)
            {
                printf("CM");
                num -= 900;
            }
            else if (num>=500)
            {
                printf("D");
                num -= 500;
            }
            else if (num>=400)
            {
                printf("CD");
                num -= 400;
            }
            else if (num>=100)
            {
                printf("C");
                num -= 100;
            }
            else if (num>=90)
            {
                printf("XC");
                num -= 90;
            }
            else if (num>=50)
            {
                printf("L");
                num -= 50;
            }
            else if (num>=40)
            {
                printf("XL");
                num -= 40;
            }
            else if (num>=10)
            {
                printf ("X");
                num -= 10;
            }
            else if (num>=9)
            {
                printf ("IX");
                num -= 9;
            }
            else if (num>=5)
            {
                printf ("V\n");
                num -= 5;
            }
            else if (num>=4)
            {
                printf ("IV");
                num -= 4;
            }
            else if (num>=1)
            {
                printf ("I");
                num -= 1;
            }
        }
        printf ("\n");
    }
    return 0;
}