Compilare: main.cpp: In function 'BigInt adunare(const BigInt&, const BigInt&)': main.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for (int i = 0; i < A.size() || i < B.size() || carry; ++i) { | ~~^~~~~~~~~~ main.cpp:12:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for (int i = 0; i < A.size() || i < B.size() || carry; ++i) { | ~~^~~~~~~~~~ main.cpp:13:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | if (i < A.size()) carry += A[i]; | ~~^~~~~~~~~~ main.cpp:14:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | if (i < B.size()) carry += B[i]; | ~~^~~~~~~~~~ main.cpp: In function 'BigInt inmultire(const BigInt&, int)': main.cpp:24:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for (int i = 0; i < A.size() || carry; ++i) { | ~~^~~~~~~~~~ main.cpp:25:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | if (i < A.size()) carry += (long long)A[i] * k; | ~~^~~~~~~~~~