运行 ID: 40489

Main.cc: In function ‘int main()’:
Main.cc:13:4: error: ‘strlwr’ was not declared in this scope
  c=strlwr(a);
    ^~~~~~
Main.cc:13:4: note: suggested alternative: ‘strstr’
  c=strlwr(a);
    ^~~~~~
    strstr
Main.cc:12:7: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s%s",a,b);
  ~~~~~^~~~~~~~~~~~