运行 ID: 35278

Main.cc: In function ‘int main()’:
Main.cc:7:5: error: expected ‘;’ before ‘int’
     int n[a];
     ^~~
Main.cc:7:13: warning: statement has no effect [-Wunused-value]
     int n[a];
             ^
Main.cc:8:19: error: ‘n’ was not declared in this scope
     for(int c=0;c>n[i];
                ^
Main.cc:12:11: error: ‘sum’ was not declared in this scope
     cout<