Book writing

#include <bits/stdc++.h>

using namespace std;

long long ff(long long l, long long mod)
{
    if (l > 1)
        return (ff(l - 1, mod) * (3 % mod)) % mod;
    else
        return 1;
}

int main(void)
{
 cin.sync_with_stdio(0);
 cin.tie(0);
 long long mod, p;
 
 cin >> p >> mod;
 
 long long pp = ff(p, mod);
 
 cout << pp % mod << endl;
 

}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: TIME LIMIT EXCEEDED

Test 6

Verdict: TIME LIMIT EXCEEDED

Test 7

Verdict: TIME LIMIT EXCEEDED

Test 8

Verdict: RUNTIME ERROR

Test 9

Verdict: TIME LIMIT EXCEEDED

Test 10

Verdict: RUNTIME ERROR

Test 11

Verdict: TIME LIMIT EXCEEDED

Test 12

Verdict: RUNTIME ERROR

Test 13

Verdict: TIME LIMIT EXCEEDED

Test 14

Verdict: RUNTIME ERROR

Test 15

Verdict: RUNTIME ERROR