karte.cpp: In function 'int main()':
karte.cpp:44:109: warning: format '%d' expects argument of type 'int', but argument 3 has type 'std::set<int>::size_type {aka long unsigned int}' [-Wformat=]
fprintf (fout,"%d %d %d %d" , 13 - s[0].size() , 13 - s[1].size() , 13 - s[2].size() , 13 - s[3].size() );
~~~~~~~~~~~~~~~~ ^
karte.cpp:44:109: warning: format '%d' expects argument of type 'int', but argument 4 has type 'std::set<int>::size_type {aka long unsigned int}' [-Wformat=]
karte.cpp:44:109: warning: format '%d' expects argument of type 'int', but argument 5 has type 'std::set<int>::size_type {aka long unsigned int}' [-Wformat=]
karte.cpp:44:109: warning: format '%d' expects argument of type 'int', but argument 6 has type 'std::set<int>::size_type {aka long unsigned int}' [-Wformat=]