Compilare: main.cpp: In function 'Content merge(Content, Content)': main.cpp:34:9: warning: unused variable 'lenLeft' [-Wunused-variable] 34 | int lenLeft = l.r - l.l + 1; | ^~~~~~~ main.cpp: In function 'int main()': main.cpp:178:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 178 | for (i = 0; i < vals[val].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~ main.cpp:180:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 180 | if (i + 1 == vals[val].size()) nextX = n; | ~~~~~~^~~~~~~~~~~~~~~~~~~