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Same algorithm implementation has different retults in Python and C  ?
def fib(x):
    v = 1
    u = 0
    for x in xrange(1,x+1):
        t = u + v
        u = v
        v = t
    return v

int fib(int x)
{
    int v = 1;
    int u = 0;
    int t;
    for (int i = 1; i != x + 1; i++)
    {
        t = u + v;
        u = v;
        v = t;
    }
    return v;
}