运行 ID: 66314

Main.cc: In function ‘int main()’:
Main.cc:8:5: error: ‘strupr’ was not declared in this scope
     strupr(a);
     ^~~~~~
Main.cc:8:5: note: suggested alternative: ‘strstr’
     strupr(a);
     ^~~~~~
     strstr
Main.cc:6:10: warning: unused variable ‘b’ [-Wunused-variable]
     char b[101];
          ^
Main.cc:7:10: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
     fgets(a,100,stdin);
     ~~~~~^~~~~~~~~~~~~