Compilare: main.cpp: In function 'int main()': main.cpp:80:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for(j = 0; j < s.size(); j++){ | ~~^~~~~~~~~~ main.cpp:82:37: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | while(s[j] != ' ' and j < s.size()) | ~~^~~~~~~~~~ main.cpp: In function 'void fact()': main.cpp:64:18: warning: iteration 50004 invokes undefined behavior [-Waggressive-loop-optimizations] 64 | factorial[i] = 1ll * factorial[i - 1] * j % mod; | ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:58:23: note: within this loop 58 | for (int i = 1; i <= NMAX; i++) { | ~~^~~~~~~ main.cpp: In function 'int main()': main.cpp:73:18: warning: iteration 50004 invokes undefined behavior [-Waggressive-loop-optimizations] 73 | sizes[i] = 1, parent[i] = i; | ~~~~~~~~~^~~ main.cpp:72:18: note: within this loop 72 | for(i = 1; i <= NMAX; i++) | ~~^~~~~~~