Compilare: main.cpp: In function 'bool solve(int, int)': main.cpp:38:40: warning: format '%d' expects argument of type 'int', but argument 4 has type 'std::vector<ajutorpitagora>::size_type {aka long unsigned int}' [-Wformat=] fprintf(fout,"%d\n%d\n",cd,ans.size()); ^ main.cpp: In function 'int main()': main.cpp:50:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&k); ^