Compilare: main.cpp: In function 'treapNode* build(int, int, int)': main.cpp:46:78: warning: narrowing conversion of '(rng.std::mersenne_twister_engine<unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::operator()() % ((std::mersenne_twister_engine<unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::result_type)((int)mod)))' from 'std::mersenne_twister_engine<unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::result_type' {aka 'unsigned int'} to 'int' [-Wnarrowing] 46 | treapNode* node = new treapNode{emptyNode, emptyNode, mid + lin * n, rng() % mod, 1}; | ~~~~~~^~~~~ main.cpp: In function 'void testCase()': main.cpp:133:83: warning: narrowing conversion of '(rng.std::mersenne_twister_engine<unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::operator()() % ((std::mersenne_twister_engine<unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::result_type)((int)mod)))' from 'std::mersenne_twister_engine<unsigned int, 32, 624, 397, 31, 2567483615, 11, 4294967295, 7, 2636928640, 15, 4022730752, 18, 1812433253>::result_type' {aka 'unsigned int'} to 'int' [-Wnarrowing] 133 | roots[x2] = ins(roots[x2], y2, new treapNode{emptyNode, emptyNode, key, rng() % mod, 1}); | ~~~~~~^~~~~