0_0_39416012_4531.cpp: In function 'void dij()': 0_0_39416012_4531.cpp:16:35: error: 'vis' was not declared in this scope; did you mean 'dis'? 16 | FOR(i,1,n*3) dis[i] = 1e9+2e8,vis[i] = 0; | ^~~ | dis