제출 #917537

#제출 시각아이디문제언어결과실행 시간메모리
917537shenfe1사이버랜드 (APIO23_cyberland)C++17
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> // #include "cyberland.h" using namespace std; #define ll long long #define ld long double #define pb push_back #define pf push_front #define pii pair<int,int> #define all(v) v.begin(),v.end() #define F first #define S second #define mem(a,i) memset(a,i,sizeof(a)) #define sz(s) (int)s.size() #define y1 yy #define ppb pop_back #define lb lower_bound #define ub upper_bound #define gcd(a,b) __gcd(a,b) #define in insert // #define int ll const int MAX=1e5+15; const ld inf=1e18; vector<pii> g[MAX]; double dp[MAX][32]; double solve(int n,int m,int k,int h,vector<int> &x,vector<int> &y,vector<int> &c,vector<int> &arr){ for(int i=0;i<=n;i++)g[i].clear(); for(int i=0;i<m;i++){ x[i]++; y[i]++; g[x[i]].pb({y[i],c[i]}); g[y[i]].pb({x[i],c[i]}); // cout<<x[i]<<" "<<y[i]<<" "<<c[i]<<"\n"; } k=min(k,30); h++; for(int i=1;i<=n;i++){ for(int j=0;j<=k;j++)dp[i][j]=inf; } dp[1][0]=0; priority_queue<pair<ld,pii>> q; q.push({0,{1,0}}); while(!q.empty()){ pair<ld,pii> boofer=q.top(); q.pop(); int v=boofer.S.F,c=boofer.S.S; if(dp[v][c]<boofer.F||v==h)continue; // cout<<v<<" "<<c<<" "<<dp[v][c]<<"\n"; for(auto to:g[v]){ if(arr[to.F-1]==0){ if(dp[to.F][c]>0){ dp[to.F][c]=0; q.push({dp[to.F][c],{to.F,c}}); } } else if(arr[to.F-1]==1){ if(dp[v][c]+to.S<dp[to.F][c]){ dp[to.F][c]=dp[v][c]+to.S; q.push({dp[to.F][c],{to.F,c}}); } } else{ if(dp[v][c]+to.S<dp[to.F][c]){ dp[to.F][c]=dp[v][c]+to.S; q.push({dp[to.F][c],{to.F,c}}); } ld cost=(dp[v][c]+to.S)/2; if(c+1<=k&&cost<dp[to.F][c+1]){ dp[to.F][c+1]=cost; q.push({dp[to.F][c+1],{to.F,c+1}}); } } } } double ans=inf; for(int i=0;i<=k;i++)ans=min(ans,dp[h][i]); if(ans==inf)return -1.0; return ans; } // int main(){ // ios_base::sync_with_stdio(0); // cin.tie(0); // cout.tie(0); // int t; // cin>>t; // cout.precision(10); // while(t--){ // int n,m,k,h; // cin>>n>>m>>k>>h; // vector<int> arr(n); // for(int i=0;i<n;i++)cin>>arr[i]; // vector<int> x(m),y(m),c(m); // for(int i=0;i<m;i++)cin>>x[i]>>y[i]>>c[i]; // cout<<fixed<<solve(n,m,k,h,x,y,c,arr)<<"\n"; // } // }

컴파일 시 표준 에러 (stderr) 메시지

/usr/bin/ld: /tmp/ccwymoPT.o: in function `main':
grader.cpp:(.text.startup+0x696): undefined reference to `solve(int, int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status