Compilare: main.cpp: In function 'bool get_inter(int, int)': main.cpp:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int x=0;x<d.size();x++) ~^~~~~~~~~ main.cpp: In function 'void fill(int, int)': main.cpp:28:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x>=1 && y>=1 && x<vx.size() && y<vy.size()); ~^~~~~~~~~~ main.cpp:28:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x>=1 && y>=1 && x<vx.size() && y<vy.size()); ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<vx.size();i++) ~^~~~~~~~~~ main.cpp:53:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<vy.size();j++) ~^~~~~~~~~~ main.cpp:56:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<vx.size();i++) ~^~~~~~~~~~ main.cpp:57:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<vy.size();j++) ~^~~~~~~~~~