Compilare: main.cpp: In function 'void findChainEdges()': main.cpp:67:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void computeInterNodesDP()': main.cpp:187:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<interNodes.size(); i++) ~^~~~~~~~~~~~~~~~~~ main.cpp:209:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<nodes.size()-1 and isGood == true; i++){ ~^~~~~~~~~~~~~~~ main.cpp:221:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<nodes.size(); i++) ~^~~~~~~~~~~~~ main.cpp:229:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<edge[first].size() and f == true; i++){ ~^~~~~~~~~~~~~~~~~~~ main.cpp:235:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<edge[last].size() and l == true; i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp:228:17: warning: unused variable 'node' [-Wunused-variable] int node; ^~~~