运行 ID: 51490

Main.cc: In function ‘int main()’:
Main.cc:9:5: error: expected ‘,’ or ‘;’ before ‘for’
     for (int i = 0; i < n; i++) { 
     ^~~
Main.cc:9:21: error: ‘i’ was not declared in this scope
     for (int i = 0; i < n; i++) { 
                     ^