Compilare: main.cpp: In function 'void build(int, int, int)': main.cpp:107:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | while (i < aint[0][2 * nod].val.size() && j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:107:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | while (i < aint[0][2 * nod].val.size() && j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:118:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 118 | while (i < aint[0][2 * nod].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:122:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 122 | while (j < aint[0][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:127:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | while (i < aint[1][2 * nod].val.size() && j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:127:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | while (i < aint[1][2 * nod].val.size() && j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:137:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 137 | while (i < aint[1][2 * nod].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:141:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | while (j < aint[1][2 * nod + 1].val.size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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[0][nod].val.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:149:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 149 | for (int i = 1; i < aint[1][nod].val.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~