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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int array[9] = {
  5.  		1, 2, 3,
  6.  		4, 5, 6,
  7.  		7, 8, 9
  8. 	}, x, y, *pointer[3];
  9.  
  10. 	puts("[y * 3 + x]");
  11. 	for(y=0;y<3;y++) {
  12.   		for(x=0;x<3;x++) {
  13.     		printf("%2d ", array[y * 3 + x]);
  14.   		}
  15.   		puts("");
  16. 	}
  17.  
  18. 	puts("[y][x]");
  19. 	for(y=0;y<3;y++) {
  20. //		pointer[y] = (int**)&(array[y * 3]);
  21. 		pointer[y] = &(array[y * 3]);
  22.   		for(x=0;x<3;x++) {
  23. //  			pointer[y][x] = (int*)((y * 3 + x + 1) * 10);
  24.   			pointer[y][x] = (y * 3 + x + 1) * 10;
  25.     		printf("%2d ", array[y * 3 + x]);
  26.   		}
  27.   		puts("");
  28. 	}
  29.  
  30. 	return 0;
  31. }
  32.  
Success #stdin #stdout 0s 2292KB
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stdin
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Standard input is empty
stdout
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[y * 3 + x]
 1  2  3 
 4  5  6 
 7  8  9 
[y][x]
10 20 30 
40 50 60 
70 80 90
https://ideone.com/2cbjRj
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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