Borderou de evaluare (job #686939)

Compilare: main.cpp: In function 'void solve()': main.cpp:119:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 119 | for(i = 0; i < v[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:146:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'unsigned int'} [-Wsign-compare] 146 | for(i = 0; i < ans.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:32:30: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result] 32 | fread(buff, 1, 4096, fin); | ~~~~~^~~~~~~~~~~~~~~~~~~~