Compilare: main.cpp: In function 'int main()': main.cpp:160:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=t[tp.x][tp.y];i<galID[tp.x][tp.y].size();i++) ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:171:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==galID[tp.x][tp.y].size()) ~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:37:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cartite.in","r",stdin); ^ main.cpp:38:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cartite.out","w",stdout); ^ main.cpp:39:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&p); ^ main.cpp:40:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&m,&n); ^ main.cpp:41:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&yc,&xc); ^ main.cpp:42:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^ main.cpp:52:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&i,&j,&o); ^ main.cpp:71:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&g); ^ main.cpp:77:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&y1,&x1,&y2,&x2); ^ main.cpp:118:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&y1,&x1,&y2,&x2); ^ main.cpp:146:35: warning: 'first.point::y' may be used uninitialized in this function [-Wmaybe-uninitialized] grad[first.x][first.y]++; ^ main.cpp:146:35: warning: 'first.point::x' may be used uninitialized in this function [-Wmaybe-uninitialized]