Compilare: user.cpp: In function ‘void infasuratoare(std::vector<std::pair<int, int> >&)’: user.cpp:26:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<P.size(); j++) ^ user.cpp:41:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=2;j<P.size();j++) { ^ user.cpp: In function ‘int next(std::vector<std::pair<int, int> >&, int)’: user.cpp:55:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return ((c!=P.size()-1) ? c+1 : 0); ^ user.cpp: In function ‘int main()’: user.cpp:131:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (cp == P.size()-1) { ^ user.cpp:106:9: warning: unused variable ‘nxt’ [-Wunused-variable] int nxt, prv; ^ user.cpp:106:14: warning: unused variable ‘prv’ [-Wunused-variable] int nxt, prv; ^ user.cpp:86:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.cpp:89:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&x,&y,&z); ^