Compilare: main.cpp: In function 'void find_sum_log(std::vector<int>&, int)': main.cpp:24:26: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 24 | if ((n >> i) & 1 == 1) | ~~^~~~ main.cpp: In function 'void read(std::vector<std::vector<int> >)': main.cpp:31:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (int i = 0; i < matrix.size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:33:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for (int j = 0; j < matrix[i].size(); j++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void complete_max_log(std::pair<int, int>, std::vector<std::vector<int> >&)': main.cpp:44:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | if (node.first >= matrix.size() || node.second >= matrix[0].size()) | ~~~~~~~~~~~^~~~~~~~~~~~~~~~ main.cpp:44:56: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | if (node.first >= matrix.size() || node.second >= matrix[0].size()) | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:49:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if (A.first + 1 < matrix.size() && A.second + 1 < matrix[0].size()) | ~~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:49:53: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if (A.first + 1 < matrix.size() && A.second + 1 < matrix[0].size()) | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void complete_rest(std::vector<std::vector<int> >&, std::vector<int>&)': main.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < sum_of_2.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:61:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for (int j = 0; j <= matrix[i].size() -1 -i; j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:63:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (int j = i + 1; j < matrix.size() && matrix[j][matrix[j].size() -1 -i] == 0; j++) | ~~^~~~~~~~~~~~~~~ main.cpp:69:18: warning: statement has no effect [-Wunused-value] 69 | for (j; j < matrix[line].size() && matrix[line - 1][j + 1] == 0; j++) | ^ main.cpp:69:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for (j; j < matrix[line].size() && matrix[line - 1][j + 1] == 0; j++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for (int i = 0; i < matrix.size(); i++) | ~~^~~~~~~~~~~~~~~