Compilare: user.cpp: In function ‘int solve(int)’: user.cpp:25:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i<strlen(s)) ^ user.cpp: In function ‘int main()’: user.cpp:110:18: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[100005]’ [-Wformat=] fscanf(f,"%s",&s); ^ user.cpp: In function ‘int solve(int)’: user.cpp:100:1: warning: control reaches end of non-void function [-Wreturn-type] } ^