运行 ID: 330945

Main.cc: In function ‘int main()’:
Main.cc:2:75: warning: unused variable ‘total’ [-Wunused-variable]
  int main() {     int a, b, c;     scanf("%d %d %d", &a, &b, &c);     int total = a * 0.2 + b * 0.3 + c * 0.5 + 0.5; // 四舍五入     printf("%d\n", total);     return 0; }
                                                                           ^~~~~
Main.cc:2:116: error: expected ‘}’ at end of input
  int main() {     int a, b, c;     scanf("%d %d %d", &a, &b, &c);     int total = a * 0.2 + b * 0.3 + c * 0.5 + 0.5; // 四舍五入     printf("%d\n", total);     return 0; }
                                                                                                                    ^
Main.cc:2:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  int main() {     int a, b, c;     scanf("%d %d %d", &a, &b, &c);     int total = a * 0.2 + b * 0.3 + c * 0.5 + 0.5; // 四舍五入     printf("%d\n", total);     return 0; }
                                    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~