Compilare: main.cpp: In function 'void normalizeLines()': main.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int i = 0; i < evline.size(); i ++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void normalizeColumns()': main.cpp:62:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = 0; i < evline.size(); i ++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void checkNormalization()': main.cpp:79:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int i = 0; i < evline.size(); i ++) { | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void computeColumnUpdates()': main.cpp:107:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Event>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 107 | for(; i < evcol.size() and evcol[i].col == col; i ++){ | ~~^~~~~~~~~~~~~~ main.cpp:100:10: warning: variable 'ok' set but not used [-Wunused-but-set-variable] 100 | bool ok = false; | ^~ main.cpp: In function 'void solve()': main.cpp:201:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Update>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 201 | for(; k < updates.size() and updates[k].line == line; k ++) { | ~~^~~~~~~~~~~~~~~~