Compilare: user.cpp: In function ‘int main()’: user.cpp:15:22: warning: format ‘%ld’ expects argument of type ‘long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(f,"%ld",&k); ^ user.cpp:18:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100001]’ [-Wformat=] fscanf(f,"%s",&a); ^ user.cpp:20:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(a)-k;i++) ^