Compilare: main.cpp: In function 'Node* find_node(Node*, int)': main.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for (int i = 0; i < node->keys.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:46:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | if (i == node->keys.size() - 1) | ~~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int get_index(Node*, Node*)': main.cpp:53:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Node*>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int i = 0; i < parent->children.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void traverse(Node*)': main.cpp:186:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 186 | for(int i = 0; i< node->keys.size(); i++) | ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void linii(Node*)': main.cpp:334:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 334 | for(int i = 0; i <nod->keys.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:337:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Node*>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 337 | for(int i = 0; i <nod->children.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'bool search(Node*, int)': main.cpp:342:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 342 | for(int i = 0; i < node->keys.size(); i++) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:346:34: warning: comparison of integer expressions of different signedness: 'std::vector<Node*>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 346 | if(node->children.size() > i) | ~~~~~~~~~~~~~~~~~~~~~~^~~ main.cpp: In function 'Node* find_node(Node*, int)': main.cpp:49:1: warning: control reaches end of non-void function [-Wreturn-type] 49 | } | ^ main.cpp: In function 'int get_index(Node*, Node*)': main.cpp:60:1: warning: control reaches end of non-void function [-Wreturn-type] 60 | } | ^ main.cpp: In function 'bool search(Node*, int)': main.cpp:359:1: warning: control reaches end of non-void function [-Wreturn-type] 359 | } | ^