Compilare: main.cpp: In function 'void DFS(int)': main.cpp:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void DFS2(int)': main.cpp:31:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp:38:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp:38:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0;i<g[x].size();i++) ^~~ main.cpp:40:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' dp[x][0]=s; ^~ main.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void DFS3(int)': main.cpp:49:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp:56:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp:56:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0;i<g[x].size();i++) ^~~ main.cpp:58:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' ddp[x][0]=s; ^~~ main.cpp:61:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[x].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[a].size();i++) ~^~~~~~~~~~~~ main.cpp:92:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[b].size();i++) ~^~~~~~~~~~~~