Compilare: user.cpp: In function ‘int main()’: user.cpp:42:37: warning: unused variable ‘c1m’ [-Wunused-variable] int c1, c2, sc, smax = INT_MIN, c1m, c2m, im; ^ user.cpp:42:42: warning: unused variable ‘c2m’ [-Wunused-variable] int c1, c2, sc, smax = INT_MIN, c1m, c2m, im; ^ user.cpp:42:47: warning: unused variable ‘im’ [-Wunused-variable] int c1, c2, sc, smax = INT_MIN, c1m, c2m, im; ^ user.cpp: In function ‘char getch()’: user.cpp:9:61: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(pos == BUF_SIZE)fread(buf, 1, BUF_SIZE, fin), pos = 0; ^