/in/main.c:3:2: error: invalid preprocessing directive #inclide
 #inclide<math.h>typedef struct_country{
  ^~~~~~~
/in/main.c:6:1: error: expected identifier or '(' before '}' token
 } country;
 ^
/in/main.c:6:3: error: data definition has no type or storage class [-Werror]
 } country;
   ^~~~~~~
/in/main.c:6:3: error: type defaults to 'int' in declaration of 'country' [-Werror=implicit-int]
/in/main.c: In function 'main':
/in/main.c:16:29: error: integer overflow in expression [-Werror=overflow]
     float t=rand()/(RAND_MAX+1);
                             ^
/in/main.c:17:5: error: statement with no effect [-Werror=unused-value]
     country x[16];
     ^~~~~~~
/in/main.c:17:13: error: expected ';' before 'x'
     country x[16];
             ^
/in/main.c:21:9: error: 'x' undeclared (first use in this function)
         x[i]={rank, name[4]};
         ^
/in/main.c:21:9: note: each undeclared identifier is reported only once for each function it appears in
/in/main.c:21:14: error: expected expression before '{' token
         x[i]={rank, name[4]};
              ^
/in/main.c:26:31: error: left-hand operand of comma expression has no effect [-Werror=unused-value]
            float w =(x[a].rank,x[b].rank,k);
                               ^
/in/main.c:26:41: error: left-hand operand of comma expression has no effect [-Werror=unused-value]
            float w =(x[a].rank,x[b].rank,k);
                                         ^
/in/main.c:27:16: error: implicit declaration of function 'round' [-Werror=implicit-function-declaration]
             if(round( t-w+0.5)>=0)
                ^~~~~
/in/main.c:27:16: error: incompatible implicit declaration of built-in function 'round' [-Werror]
/in/main.c:27:16: note: include '<math.h>' or provide a declaration of 'round'
/in/main.c:28:17: error: expected expression before 'char'
                 char* r="win";
                 ^~~~
/in/main.c:27:13: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
             if(round( t-w+0.5)>=0)
             ^~
/in/main.c:29:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
                 printf("%s %s %s",x[a].name,r,x[b].name);
                 ^~~~~~
/in/main.c:29:45: error: 'r' undeclared (first use in this function)
                 printf("%s %s %s",x[a].name,r,x[b].name);
                                             ^
/in/main.c:25:17: error: variable 'b' set but not used [-Werror=unused-but-set-variable]
             int b=2*n-1;
                 ^
/in/main.c:24:17: error: variable 'a' set but not used [-Werror=unused-but-set-variable]
             int a=2*n-2;
                 ^
/in/main.c:30:14: error: 'else' without a previous 'if'
             }else{
              ^~~~
/in/main.c:32:37: error: 'a' undeclared (first use in this function)
                 printf("%s %s %s",x[a].name,r,x[b].name);
                                     ^
/in/main.c:32:49: error: 'b' undeclared (first use in this function)
                 printf("%s %s %s",x[a].name,r,x[b].name);
                                                 ^
/in/main.c:20:14: error: unused variable 'name' [-Werror=unused-variable]
         char name[4];
              ^~~~
/in/main.c:19:13: error: unused variable 'rank' [-Werror=unused-variable]
         int rank;
             ^~~~
/in/main.c: At top level:
/in/main.c:39:5: error: expected identifier or '(' before 'return'
     return 0;
     ^~~~~~
/in/main.c:40:1: error: expected identifier or '(' before '}' token
 }
 ^
/in/main.c: In function 'w':
/in/main.c:41:52: error: fixed-point constants are a GCC extension [-Werror]
 float w(int ra, int rb,int k){return (rb+k)/(ra+rb+2k);}
                                                    ^~
/in/main.c:41:52: error: fixed-point types not supported for this target
/in/main.c:41:1: error: control reaches end of non-void function [-Werror=return-type]
 float w(int ra, int rb,int k){return (rb+k)/(ra+rb+2k);}
 ^~~~~
cc1: all warnings being treated as errors