Compilare: main.cpp: In function 'int main()': main.cpp:81:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Sol.size();++i) ~^~~~~~~~~~~ main.cpp: In function 'void Read()': main.cpp:28:33: warning: iteration 400000 invokes undefined behavior [-Waggressive-loop-optimizations] for(int i=1;i<=NMAX;++i)m[i]=i,sz[i]=1; ~~~~^~ main.cpp:28:18: note: within this loop for(int i=1;i<=NMAX;++i)m[i]=i,sz[i]=1; ~^~~~~~