Compilare: main.cpp: In function 'void build(int, int, int)': main.cpp:106:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | while (i < aint[0][2 * nod].val.size() && j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:106:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | while (i < aint[0][2 * nod].val.size() && j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:117:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 117 | while (i < aint[0][2 * nod].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:121:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | while (j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:126:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | while (i < aint[1][2 * nod].val.size() && j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:126:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | while (i < aint[1][2 * nod].val.size() && j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:136:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 136 | while (i < aint[1][2 * nod].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:140:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 140 | while (j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:146:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 146 | for (int i = 1; i < aint[0][nod].val.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:148:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 148 | for (int i = 1; i < aint[1][nod].val.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~