Compilare: user.cpp: In function ‘void init()’: user.cpp:55:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<G[1].size(); i++) ~^~~~~~~~~~~~ user.cpp: In function ‘void solve()’: user.cpp:71:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<G[nod_nou].size(); ++i) ~^~~~~~~~~~~~~~~~~~ user.cpp:71:17: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i = 0; i<G[nod_nou].size(); ++i) ^~~ user.cpp:73:21: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ rez[nod_nou] = 1; ^~~ user.cpp: In function ‘void write()’: user.cpp:80:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<sol.size(); i++) ~^~~~~~~~~~~ user.cpp: In function ‘void read()’: user.cpp:39:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d",&n,&m); ^ user.cpp:43:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&x,&y,&c); ^