fib.cpp

#include <cstdio>

const int max = 65000;
const int lineLength = 12;

void fibonacci( int max )
{
    if ( max < 2 )
        return;

    printf("0 1 ");
    int v1 = 0, v2 = 1, cur;
    for ( int ix = 3; ix <= max; ++ix ) {
        cur = v1 + v2;
        if ( cur > ::max ) break;
        printf("%d ", cur);
        v1 = v2;
        v2 = cur;
        if (ix % lineLength == 0)
            puts("");
    }
}

void fibonacci( int );
int main()
{
    printf("Fibonacci Series: 20\n");
    fibonacci(20);
    return 0;
}