运行 ID: 6163

Main.cc: In function ‘int main()’:
Main.cc:7:6: error: expected primary-expression before ‘int’
  fot(int i=0;i<=n;i++){
      ^~~
Main.cc:7:14: error: ‘i’ was not declared in this scope
  fot(int i=0;i<=n;i++){
              ^
Main.cc:6:6: warning: unused variable ‘s’ [-Wunused-variable]
  int s=0;
      ^