运行 ID: 225

Main.cc: In function ‘int main()’:
Main.cc:10:12: error: unable to find string literal operator ‘operator""b’ with ‘const char [5]’, ‘long unsigned int’ arguments
     printf("%.1f"b);
            ^~~~~~~
Main.cc:11:12: error: expected ‘}’ at end of input
    return 0;
            ^
Main.cc:4:10: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%f",&a);
     ~~~~~^~~~~~~~~