Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:20:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graph[nod].size(); ++i) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs1(int, int)': main.cpp:37:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<graph2[nod].size(); ++i) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:69:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=1;i<=n;++i) ^~~ main.cpp:77:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fprintf(g,"%d:%d\n",caz,valmax); ^~~~~~~ main.cpp:46:13: warning: unused variable 'ss' [-Wunused-variable] int m,n,ss=0,val,caz=1; ^~ main.cpp:49:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&val); ^ main.cpp:55:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&m); ^ main.cpp:58:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d %d",&x,&y); ^ main.cpp:78:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&val); ^