Compilare: user.cpp: In function ‘int coloana_cu_cost_minim(int)’: user.cpp:62:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(!WW.empty() && WW.size()>=q) ^ user.cpp:58:16: warning: unused variable ‘s2’ [-Wunused-variable] int s1=0,s2=0; ^ user.cpp:59:20: warning: unused variable ‘p2’ [-Wunused-variable] bool p1=true,p2=true; ^ user.cpp:79:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<W.size();i++) ^ user.cpp:83:11: warning: unused variable ‘X’ [-Wunused-variable] int X=rasp_coloana+(W[i].e_in_stanga?(-1):1); ^ user.cpp:28:7: warning: unused variable ‘ST’ [-Wunused-variable] bool ST=false; ^ user.cpp: In function ‘int coloana_cu_cost_minim(int, int)’: user.cpp:127:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(!WW.empty() && WW.size()>q) ^ user.cpp:123:16: warning: unused variable ‘s2’ [-Wunused-variable] int s1=0,s2=0; ^ user.cpp:124:20: warning: unused variable ‘p2’ [-Wunused-variable] bool p1=true,p2=true; ^ user.cpp:146:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<W.size();i++) ^ user.cpp:150:11: warning: unused variable ‘X’ [-Wunused-variable] int X=rasp_coloana+(W[i].e_in_stanga?(-1):1); ^ user.cpp:93:7: warning: unused variable ‘ST’ [-Wunused-variable] bool ST=false; ^ user.cpp: In function ‘int main()’: user.cpp:165:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lenes.in","r",stdin); ^ user.cpp:166:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lenes.out","w",stdout); ^ user.cpp:168:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d ",&cer); ^ user.cpp:170:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d ",&n,&m,&k1,&k2);