Compilare: user.cpp: In function ‘int main()’: user.cpp:49:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < pante.size()) ^ user.cpp:52:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pante[j] == pante[j - 1] && j < pante.size()) ^ user.cpp:18:18: warning: unused variable ‘x’ [-Wunused-variable] int i, j, n, x, y, numarator, numitor, nrtrapeze; ^ user.cpp:18:21: warning: unused variable ‘y’ [-Wunused-variable] int i, j, n, x, y, numarator, numitor, nrtrapeze; ^