Compilare: user.cpp: In function ‘int main()’: user.cpp:106:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in >> c + 1; ^ user.cpp:126:17: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] in >> c + 1; ^ user.cpp:104:17: warning: unused variable ‘MOD’ [-Wunused-variable] int t,i,j,k,MOD,d,x; ^ user.cpp:104:21: warning: unused variable ‘d’ [-Wunused-variable] int t,i,j,k,MOD,d,x; ^