Compilare: main.cpp: In function 'int main()': main.cpp:20:9: warning: unused variable 'i' [-Wunused-variable] int i; ^ main.cpp: In function 'void repeuler(int)': main.cpp:47:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<g[node].size(); i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void process()': main.cpp:65:48: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] if(level[c[i][j-1]]<level[c[i+(1<<j-1)][j-1]]) ~^~ main.cpp:68:34: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] c[i][j]=c[i+(1<<j-1)][j-1]; ~^~