Compilare: main.cpp: In function 'void read()': main.cpp:34:37: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int index1 = 0; index1 < strlen(s); ++index1) { | ~~~~~~~^~~~~~~~~~~ main.cpp: In function 'void display()': main.cpp:112:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 112 | for (int i = 0; i < copaci.size(); ++i) { | ~~^~~~~~~~~~~~~~~