Compilare: user.cpp: In function ‘void dijkstra()’: user.cpp:28:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < g[x].size(); i++) ^ user.cpp:19:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, k, val, x; ^ user.cpp:19:15: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k, val, x; ^ user.cpp: In function ‘int main()’: user.cpp:37:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&n,&m); ^ user.cpp:39:61: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d%d",&x,&y,&z), g[x].pb(y), c[x].pb(z); ^