foo.cc: In function 'int isExist(int, int)':
foo.cc:11:46: warning: comparison of integer expressions of different signedness: 'size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   11 |   if(p!=NULL&&p-&str[bgn]==0&&strlen(word[i])<=end-bgn+1){
      |                               ~~~~~~~~~~~~~~~^~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |  scanf("%d%d",&p,&cut);
      |  ~~~~~^~~~~~~~~~~~~~~~
foo.cc:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |   scanf("%s",tmp);
      |   ~~~~~^~~~~~~~~~
foo.cc:23:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |  scanf("%d",&s);
      |  ~~~~~^~~~~~~~~
foo.cc:25:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |   scanf("%s",word[i]);
      |   ~~~~~^~~~~~~~~~~~~~

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