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

#define SIZE 10000

void sum_rows1(int* a, int* b, long n){
  long i,j;
  for (i = 0; i < n; i++){
    b[i] = 0;
    for (j =0; j < n; j++){
      b[i] += a[i*SIZE + j];

    }
  }
}



void sum_rows2(int* a, int* b, long n){
  long i,j;
  for (i = 0; i < n; i++){
    int val = 0;
    for (j =0; j < n; j++){
     val += a[i*SIZE + j];

    }
    b[i] = val;
  }
}

void sum_rows3(int* a, int* b, long n){
  long i,j,row;
  for (i = 0; i < n; i++){
    int val = 0;
	row = i*SIZE;
    for (j =0; j < n; j++){
     val += a[row + j];

    }
    b[i] = val;
  }
}







int main(int argc, char * argv[]){
	int *a;
	int *b;
	
	a = (int *) calloc(SIZE*SIZE, sizeof(int));
	b = (int *) calloc(SIZE, sizeof(int));
	memset(a,1,SIZE*SIZE);

	
	printf("Start\n");
	sum_rows1(a,b,SIZE);
	
	printf("End part 1\n");
	sum_rows2(a,b,SIZE);
	
	printf("End part 2\n");
	
	sum_rows3(a,b,SIZE);
	
	printf("End part 3\n");
	
	
	
}