이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <bits/stdc++.h>
using namespace std;
const int N=1e6+5;
const int INF=INT_MAX/2;
int n;
int a[N];
int sl,sc,el,ec;
vector<pair<int,int>> adj[2*N];
int dist[2*N];
void link(int u,int v,int w){
adj[u].emplace_back(v,w);
}
int main(){
cin.tie(nullptr)->sync_with_stdio(false);
cin >> n >> sl >> sc >> el >> ec;
sc--,ec--;
for(int i=1;i<=n;i++)cin >> a[i];
for(int i=1;i<=n;i++){
int si=i*2,ei=i*2+1;
link(si,ei,a[i]);
link(ei,si,a[i]);
}
for(int i=1;i<n;i++){
int si=i*2,ei=i*2+1,sj=i*2+2,ej=i*2+3,j=i+1;
link(sj,ei,1);
link(ei,sj,1);
link(si,sj,1);
link(sj,si,1);
}
for(int i=0;i<=2*n+1;i++)dist[i]=INF;
int mn=sc;
for(int i=sl;i<=n;i++){
mn=min(mn,a[i]);
link(0,i*2,i-sl+sc);
link(0,i*2+1,i-sl+abs(a[i]-mn));
if(i==el)link(0,1,i-sl+abs(ec-mn));
}
mn=sc;
for(int i=sl;i>=1;i--){
mn=min(mn,a[i]);
link(0,i*2,sl-i+sc);
link(0,i*2+1,sl-i+abs(a[i]-mn));
if(i==el)link(0,1,sl-i+abs(ec-mn));
}
mn=a[el];
for(int i=el;i<=n;i++){
mn=min(mn,a[i]);
link(i*2,1,i-el+ec);
link(i*2+1,1,i-el+abs(ec-mn));
}
mn=a[el];
for(int i=el;i>=1;i--){
mn=min(mn,a[i]);
link(i*2,1,el-i+ec);
link(i*2+1,1,el-i+abs(ec-mn));
}
using P = pair<int,int>;
priority_queue<P,vector<P>,greater<P>> pq;
pq.emplace(0,0);
dist[0]=0;
while(!pq.empty()){
auto [d,u]=pq.top();
pq.pop();
if(d>dist[u])continue;
for(auto [v,w]:adj[u])if(d+w<dist[v]){
dist[v]=d+w;
pq.emplace(dist[v],v);
}
}
cout << dist[1];
}
컴파일 시 표준 에러 (stderr) 메시지
Main.cpp: In function 'int main()':
Main.cpp:29:38: warning: unused variable 'ej' [-Wunused-variable]
29 | int si=i*2,ei=i*2+1,sj=i*2+2,ej=i*2+3,j=i+1;
| ^~
Main.cpp:29:47: warning: unused variable 'j' [-Wunused-variable]
29 | int si=i*2,ei=i*2+1,sj=i*2+2,ej=i*2+3,j=i+1;
| ^
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