Compilare: user.cpp: In function ‘int main()’: user.cpp:26:24: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100001]’ [-Wformat=] fscanf(fin,"%s",&ch); ^ user.cpp:30:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<strlen(ch);i++) ^ user.cpp:103:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<strlen(ch);i++) ^ user.cpp:25:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&p); ^ user.cpp:26:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%s",&ch); ^