Main.cc: In function 'int main()': Main.cc:12:22: error: expected ']' before ';' token cin>>arr[i][j;] ^ Main.cc:12:23: error: expected primary-expression before ']' token cin>>arr[i][j;] ^ Main.cc:31:13: error: break statement not within loop or switch if(max==min)break; ^ Main.cc:8:33: warning: unused variable 'flag' [-Wunused-variable] int i=0,j=0,n=0,m=0,max=0,min=0,flag=0; ^