Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:11:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, int, int&)': main.cpp:38:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<w[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:73:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (tt == 28) ^~ main.cpp:75:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' v[x].push_back(y); ^ main.cpp:103:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < s[i].size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:114:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < s[i].size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:141:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < s[i].size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:147:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0 ; k < v[nod].size() ; k++){ ~~^~~~~~~~~~~~~~~ main.cpp:150:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int kk = 0 ; kk < where[vecin].size() ; kk++) ~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:155:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (many != s[i].size()) ~~~~~^~~~~~~~~~~~~~ main.cpp:164:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < s[1].size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:179:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < where[nod].size() ; j++){ ~~^~~~~~~~~~~~~~~~~~~ main.cpp:185:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == where[nod].size()) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:188:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < s[cbx].size() ; j++){ ~~^~~~~~~~~~~~~~~ main.cpp:220:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0 ; j < w[i].size() ; j++){ ~~^~~~~~~~~~~~~ main.cpp:52:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&t);