Compilare: main.cpp: In function 'void solve_testcase()': main.cpp:64:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | #define FOR(i, a, b) for(int i = a; i <= b; ++i) | ^ main.cpp:273:9: note: in expansion of macro 'FOR' 273 | FOR(j, 1, G[i].size()) | ^~~ main.cpp:282:13: warning: unused variable 'sx' [-Wunused-variable] 282 | int sx = (*ms.begin()).ff.ff; | ^~ main.cpp:283:13: warning: unused variable 'scr' [-Wunused-variable] 283 | int scr = (*ms.begin()).ff.ss; | ^~~