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cpp/tribonacci.cpp
int tribonacci(int n) {
    int t0 = 0;
    int t1 = 1;
    int t2 = 1;
    if (n == 0) return t0;
    if (n == 1) return t1;
    if (n == 2) return t2;
    int t;
    for (int i = 3; i <= n; i++) {
        t = t0 + t1 + t2;
        t0 = t1;
        t1 = t2;
        t2 = t;
    }
    return t;
}

int main() {
}