제출 #1010949

#제출 시각아이디문제언어결과실행 시간메모리
1010949imarnJOI tour (JOI24_joitour)C++17
컴파일 에러
0 ms0 KiB
#include<bits/stdc++.h> #pragma GCC optimize("O3") #pragma GCC target("avx2") #define ll long long #define pii pair<int,int> #define pll pair<ll,ll> #define plx pair<ll,int> #define f first #define s second #define pb push_back #define all(x) x.begin(),x.end() #define vi vector<int> #define vl vector<ll> #define vvi vector<vi> using namespace std; const int mxn=2e5+5; vector<int>g[mxn],f; int sz[mxn]{0}; bool vis[mxn]{0}; unsigned ll ans=0; int getsz(int u,int p){ sz[u]=1; for(auto v:g[u])if(v!=p&&!vis[v])sz[u]+=getsz(v,u); return sz[u]; } int getct(int u,int p,int r){ for(auto v:g[u])if(v!=p&&!vis[v]&&sz[v]*2>r)return getct(v,u,r); return u; } vector<ll>dp[10][mxn]; ll td[10][mxn]{0}; void gen1(int u,int p,int x,int id){ dp[f[u]][x][id]++; if(f[u]==2)dp[3][x][id]+=dp[1][x][id]; if(f[u]==1)dp[4][x][id]+=dp[0][x][id]; for(auto v:g[u])if(v!=p&&!vis[v])gen1(v,u,x,id); dp[f[u]][x][id]--; } void gen2(int u,int p,int x,int id){ for(auto v:g[u])if(v!=p&&!vis[v])gen2(v,u,x,id); dp[f[u]+5][x][id]++; if(f[u]==1)dp[8][x][id]+=dp[5][x][id]; if(f[u]==2)dp[9][x][id]+=dp[6][x][id]; } void gen3(int u,int p,int x,int id){ dp[f[u]][x][id]++; for(auto v:g[u])if(v!=p&&!vis[v])gen3(v,u,x,id); } void play(int u){int id=-1; u = getct(u,u,getsz(u,u));vis[u]=1; for(auto v:g[u]){ if(vis[v])continue; for(int i=0;i<10;i++)dp[i][u].pb(0);id++; gen1(v,u,u,id);gen2(v,u,u,id);gen3(v,u,u,id); for(int i=0;i<10;i++)td[i][u]+=dp[i][u][id]; }for(int j=0;j<=id;j++){ ans+=dp[0][u][j]*(td[3][u]-dp[3][u][j]); ans+=dp[8][u][j]*(td[2][u]-dp[2][u][j]); if(f[u]==1)ans+=dp[0][u][j]*(td[2][u]-dp[2][u][j]); }if(f[u]==0)ans+=td[3][u];if(f[u]==2)ans+=td[8][u]; for(auto v:g[u])if(!vis[v])play(v); } void init(int N, std::vector<int> F, std::vector<int> U, std::vector<int> V,int Q){ f=F;for(int i=0;i<N-1;i++)g[U[i]].pb(V[i]),g[V[i]].pb(U[i]);play(0); } void change(int X, int Y) {} long long num_tours() { return ans; } int main(){ int n;cin>>n; vector<int>ff(n,0),u(n-1),v(n-1); for(int i=0;i<n;i++)cin>>ff[i]; for(int i=0;i<n-1;i++)cin>>u[i]>>v[i]; init(n,ff,u,v,0);cout<<ans; }

컴파일 시 표준 에러 (stderr) 메시지

joitour.cpp: In function 'void play(int)':
joitour.cpp:53:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   53 |         for(int i=0;i<10;i++)dp[i][u].pb(0);id++;
      |         ^~~
joitour.cpp:53:45: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   53 |         for(int i=0;i<10;i++)dp[i][u].pb(0);id++;
      |                                             ^~
/usr/bin/ld: /tmp/ccaSdtoh.o: in function `main':
stub.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccGQ1qph.o:joitour.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status