/in/inDictionary.c: In function 'isinDic':
/in/inDictionary.c:9:5: error: type of 'newchar' defaults to 'int' [-Werror=implicit-int]
 int isinDic(newchar){
     ^~~~~~~
/in/inDictionary.c:10:22: error: statement with no effect [-Werror=unused-value]
     for(int i=0;i++;i<=20){
                     ~^~~~
/in/inDictionary.c:11:12: error: implicit declaration of function 'strcmp' [-Werror=implicit-function-declaration]
         if(strcmp(Words[i].word,newchar)==0){
            ^~~~~~
/in/inDictionary.c:11:19: error: 'Words' undeclared (first use in this function)
         if(strcmp(Words[i].word,newchar)==0){
                   ^~~~~
/in/inDictionary.c:11:19: note: each undeclared identifier is reported only once for each function it appears in
/in/inDictionary.c: In function 'main':
/in/inDictionary.c:17:5: error: expected declaration specifiers before 'scanf'
     scanf("%s",newchar);
     ^~~~~
/in/inDictionary.c:18:5: error: expected declaration specifiers before 'if'
     if(isinDic(newchar)!=0){
     ^~
/in/inDictionary.c:21:5: error: expected declaration specifiers before 'else'
     else{
     ^~~~
/in/inDictionary.c:27:5: error: expected '{' at end of input
     }
     ^
/in/inDictionary.c:16:14: error: unused parameter 'argc' [-Werror=unused-parameter]
 int main(int argc, char const *argv[])
              ^~~~
/in/inDictionary.c:16:32: error: unused parameter 'argv' [-Werror=unused-parameter]
 int main(int argc, char const *argv[])
                                ^~~~
/in/inDictionary.c: In function 'isinDic':
/in/inDictionary.c:15:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
cc1: all warnings being treated as errors