#include #define SIZE 10000 double a[SIZE][SIZE]; int i; double b[SIZE][SIZE]; double c[SIZE][SIZE]; void main( int argc, char **argv ) { int j,k; for( j = 0; j < SIZE; j++ ) { for( i = 0; i < SIZE; i++ ) { a[i][j] = b[i][j]+c[i][j]; } } }