Compilare: main.cpp: In function 'int main()': main.cpp:18:14: warning: unused variable 'x' [-Wunused-variable] int n, m, k, x; ^ main.cpp:19:5: warning: unused variable 'won' [-Wunused-variable] int won = 0; ^~~ main.cpp:24:5: warning: unused variable 'maxim' [-Wunused-variable] int maxim = -100; ^~~~~ main.cpp:47:5: warning: unused variable 'minim' [-Wunused-variable] int minim = 100, minstudent = 0; ^~~~~