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  1. #include<stdio.h>
  2. int main() {
  3.    int size = 3;
  4.    int matrix[3][3]; // = {{4,9,2},{3,5,7},{8,1,6}};
  5.    int row, column = 0;
  6.    int sum, sum1, sum2;
  7.    int flag = 0;
  8.  
  9.    //printf("\nEnter matrix : ");
  10.    for (row = 0; row < size; row++) {
  11.       for (column = 0; column < size; column++)
  12.          scanf("%d", &matrix[row][column]);
  13.    }
  14.  
  15.  /*  printf("Entered matrix is : \n");
  16.    for (row = 0; row < size; row++) {
  17.       printf("\n");
  18.       for (column = 0; column < size; column++) {
  19.          printf("\t%d", matrix[row][column]);
  20.       }
  21.    }*/
  22.  
  23.    //For diagonal elements
  24.    sum = 0;
  25.    for (row = 0; row < size; row++) {
  26.       for (column = 0; column < size; column++) {
  27.          if (row == column)
  28.             sum = sum + matrix[row][column];
  29.       }
  30.    }
  31.  
  32.    //For Rows
  33.    for (row = 0; row < size; row++) {
  34.       sum1 = 0;
  35.       for (column = 0; column < size; column++) {
  36.          sum1 = sum1 + matrix[row][column];
  37.       }
  38.       if (sum == sum1)
  39.          flag = 1;
  40.       else {
  41.          flag = 0;
  42.          break;
  43.       }
  44.    }
  45.  
  46.    //For Columns
  47.    for (row = 0; row < size; row++) {
  48.       sum2 = 0;
  49.       for (column = 0; column < size; column++) {
  50.          sum2 = sum2 + matrix[column][row];
  51.       }
  52.       if (sum == sum2)
  53.          flag = 1;
  54.       else {
  55.          flag = 0;
  56.          break;
  57.       }
  58.    }
  59.  
  60.    if (flag == 1)
  61.       printf("\nMagic square");
  62.    else
  63.       printf("\nNo Magic square");
  64.  
  65.    return 0;
  66. }
Success #stdin #stdout 0s 9432KB
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No Magic square
https://ideone.com/XEIwJi
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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