Compilare: main.cpp: In function 'void build(int, int, int)': main.cpp:105:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | while (i < aint[0][2 * nod].val.size() && j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:105:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | while (i < aint[0][2 * nod].val.size() && j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:116:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | while (i < aint[0][2 * nod].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:120:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | while (j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:125:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 125 | while (i < aint[1][2 * nod].val.size() && j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:125:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 125 | while (i < aint[1][2 * nod].val.size() && j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:135:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 135 | while (i < aint[1][2 * nod].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:139:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | while (j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:145:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 145 | for (int i = 1; i < aint[0][nod].val.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:147:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 147 | for (int i = 1; i < aint[1][nod].val.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~