Compilare: main.cpp:4:2: warning: #warning this is a very futile attempt to solve this problem [-Wcpp] #warning this is a very futile attempt to solve this problem ^~~~~~~ main.cpp: In function 'void initiate(int, int)': main.cpp:31:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graph[node].size(); i++) { ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int finalcalc(int)': main.cpp:41:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<dfstree[node].size(); i++) { ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void testcase()': main.cpp:70:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<graph[i].size(); j++) ~^~~~~~~~~~~~~~~~ main.cpp:75:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<retedge[i].size(); i++) { ~^~~~~~~~~~~~~~~~~~