concentricFiller.c

/* 
 * File:   main.c
 * Author: Ryan
 *
 * Created on September 6, 2014, 1:01 PM
 */

#include <stdio.h>
#include <stdlib.h>

/*
 * data[] is the input array
 * result[][] is the output array
 * 
 * dSize is number of data elements in data[]
 * rSize is number of data elements in result[]
 * 
 */
int main(int argc, char** argv) {
    // Setup environment
    int data[] = {1,2,3,4},
        dSize = sizeof data / sizeof data[0],
        rSize = 2 * dSize - 1,
        result[rSize][rSize],
        i, j, k,
        startDex=0, endDex=rSize;
    
    // Flood double dimension array with input data
    for (i=0; i < dSize; i++) {  // Traverse input array
        for (j=startDex; j < endDex; j++) { // Y axis
            for (k=startDex; k < endDex; k++) { // X axis
                result[j][k] = data[i];
            }
        }
        startDex++;
        endDex--;
    }
    
    // Print results
    printf("{");
    for (i=0; i < rSize; i++) {
        if ( i > 0) { printf(" "); } // Conditional formatting
        printf("{");
        for (j=0; j < rSize; j++) {
            printf("%d", result[i][j]);
            if (j < rSize-1) { printf(" "); } // Conditional formatting
        }
        printf("}");
        if (i < rSize-1) { printf("\n"); } // Conditional formatting
    }
    printf("}\n\n");
    
    return (EXIT_SUCCESS);
}

/**
 * INPUT: {1,2,3,4}
 * OUTPUT:
 * 
 * {{1 1 1 1 1 1 1}
 *  {1 2 2 2 2 2 1}
 *  {1 2 3 3 3 2 1}
 *  {1 2 3 4 3 2 1}
 *  {1 2 3 3 3 2 1}
 *  {1 2 2 2 2 2 1}
 *  {1 1 1 1 1 1 1}}
 * 
 *RUN SUCCESSFUL (total time: 21ms)
 */

/**
 * INPUT: {1,2,3,4,5,6,7,8,9}
 * OUTPUT:
 *
 *{{1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}
 * {1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1}
 * {1 2 3 3 3 3 3 3 3 3 3 3 3 3 3 2 1}
 * {1 2 3 4 4 4 4 4 4 4 4 4 4 4 3 2 1}
 * {1 2 3 4 5 5 5 5 5 5 5 5 5 4 3 2 1}
 * {1 2 3 4 5 6 6 6 6 6 6 6 5 4 3 2 1}
 * {1 2 3 4 5 6 7 7 7 7 7 6 5 4 3 2 1}
 * {1 2 3 4 5 6 7 8 8 8 7 6 5 4 3 2 1}
 * {1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1}
 * {1 2 3 4 5 6 7 8 8 8 7 6 5 4 3 2 1}
 * {1 2 3 4 5 6 7 7 7 7 7 6 5 4 3 2 1}
 * {1 2 3 4 5 6 6 6 6 6 6 6 5 4 3 2 1}
 * {1 2 3 4 5 5 5 5 5 5 5 5 5 4 3 2 1}
 * {1 2 3 4 4 4 4 4 4 4 4 4 4 4 3 2 1}
 * {1 2 3 3 3 3 3 3 3 3 3 3 3 3 3 2 1}
 * {1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1}
 * {1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}}
 *
 *
 *RUN SUCCESSFUL (total time: 25ms)
 */