运行 ID: 44207

Main.cc: In function ‘int main()’:
Main.cc:12:13: error: array must be initialized with a brace-enclosed initializer
   char s[n]=char(a[n]+a[n+1]);
             ^~~~~~~~~~~~~~~~~
Main.cc:12:8: warning: unused variable ‘s’ [-Wunused-variable]
   char s[n]=char(a[n]+a[n+1]);
        ^