Compilare: user.cpp: In function ‘int main()’: user.cpp:134:21: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[5002]’ [-Wformat=] fscanf(f,"%s",&a); ^ user.cpp:135:21: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[5002]’ [-Wformat=] fscanf(f,"%s",&b); ^ user.cpp:136:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<strlen(b); i++) ^ user.cpp:133:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:134:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&a); ^ user.cpp:135:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s",&b); ^