Compilare: main.cpp: In function 'void dfs(long long int, long long int)': main.cpp:19:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[nod].size(); i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void DPdfs(long long int, long long int)': main.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[nod].size(); i++){ ~~^~~~~~~~~~~~~~~ main.cpp:42:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[nod].size(); i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(long long int, long long int)': main.cpp:52:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[nod].size(); i++){ ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:82:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0 ; i < G[minimus].size(); i++){ ~~^~~~~~~~~~~~~~~~~~~ main.cpp:94:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < G[nrp].size(); i++){ ~~^~~~~~~~~~~~~~~