cross.cpp: In function 'long long int SelectCross(int, std::vector<int>, std::vector<int>)':
cross.cpp:12:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0 ; i < I.size() ; i ++){
~~^~~~~~~~~~
cross.cpp:17:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i = 0 ; i < I.size() ; i ++){
~~^~~~~~~~~~
cross.cpp:18:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if(Sx.size() == K-1){
~~~~~~~~~~^~~~~~
cross.cpp:29:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(Sx.size() >= K){
~~~~~~~~~~^~~~