[SOLVED] Logic error of string input and output in C

Logic error of string input and output in C

I used Visual Studio. The purpose of this code is to print the value that comes out when the received character arrangement is read vertically.

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main(void) {
    int i, j;
    char a[5][15] = { 0, };
    for (i = 0; i < 5; i++) {
        for (j = 0; j < 15; j++) {
            scanf("%c", &a[i][j]); 
        }
    }

    for (i = 0; i < 15; i++) {
        for (j = 0; j < 5; j++) {
            printf("%c", a[j][i]);
        }
    }
    return 0;
}

input

AABCDD
afzz
09121
a8EWg6
P5h3kx

Expected Output

Aa0aPAf985Bz1EhCz2W3D1gkD6x

Real Output -> It doesn't print something.

I don't know why it isn't work on my purpose. Please, explain for me.

Solution

Your code will try to fill all of the characters in your 5x15 array. You need to stop filling a line as soon as you see an end-of-line character:

    for (j = 0; j < 15; j++) {
        char c;
        scanf("%c", &c);
        if (c == '\n')
            break;
        else
            a[i][j] = c;
    }

This is just to get you started. You should debug your code and fix the other problems.