Eroare de compilare: main.cpp: In function 'void precalc()': main.cpp:6:26: error: 'N' was not declared in this scope for (int i = 2; i <= N; ++i) { ^ main.cpp:7:14: error: 'sd' was not declared in this scope if (!sd[i]) ^~ main.cpp:8:21: error: 'prime' was not declared in this scope sd[i] = prime.size(), ^~~~~ main.cpp:10:30: error: 'sd' was not declared in this scope for (int j = 0; j <= sd[i] && 1LL * i * sd[j] < N; ++j) ^~ main.cpp:11:20: error: 'prime' was not declared in this scope sd[i * prime[j]] = j; ^~~~~ main.cpp: In function 'void bkt(int, int, int)': main.cpp:16:14: error: 'std::div' does not have class type if (i == div.size()) { ^~~ main.cpp:17:9: error: 'ans' was not declared in this scope ans += coef * (a / prod); ^~~ main.cpp:17:24: error: 'a' was not declared in this scope ans += coef * (a / prod); ^ main.cpp:21:9: error: 'a' was not declared in this scope if (a < ) ^ main.cpp:21:13: error: expected primary-expression before ')' token if (a < ) ^ main.cpp:22:1: error: expected primary-expression before '}' token } ^ main.cpp: In function 'int main()': main.cpp:30:16: error: 'a' was not declared in this scope cin >> a >> b; ^ main.cpp:31:9: error: 'std::div' does not have class type div.clear(); ^~~ main.cpp:32:9: error: 'ans' was not declared in this scope ans = 0; ^~~ main.cpp:33:29: error: 'prime' was not declared in this scope for (int i = 0; i < prime.size(); ++i) { ^~~~~ main.cpp:35:17: error: 'std::div' does not have class type div.push_back(prime[i]);