QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#694234 | #7075. Let's Play Jigsaw Puzzles! | ucup-team4352# | RE | 0ms | 0kb | C++23 | 2.0kb | 2024-10-31 17:31:45 | 2024-10-31 17:31:45 |
answer
#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define lowbit(x) (x&-x)
#define log(x) (31^__builtin_clz(x))
using namespace std;
const int maxn=1e4+5;
int a[maxn];
vector<int>dp[maxn];
vector<pair<short,short>>loc[maxn];
int n;
int mx[maxn][15],mn[maxn][15];
int now[maxn],Log[maxn];
inline pii calc(int l,int r){
int b=Log[r-l+1];
return {min(mn[l][b],mn[r-(1<<b)+1][b]),max(mx[l][b],mx[r-(1<<b)+1][b])};
}
inline int solv(int l,int r){
int b=Log[r-l+1];
return -min(mn[l][b],mn[r-(1<<b)+1][b])+max(mx[l][b],mx[r-(1<<b)+1][b]);
}
short find(int x,int y,int nx,int ny){
short l=y+1,r=n+1;
while(l<r){
short mid=l+r-1>>1;
if(solv(x+1,mid)+nx>solv(y+1,mid)+ny)l=mid+1;
else r=mid;
}
return l;
}
void solve(){
n=1e4;
// cin>>n;
for(int i=1;i<=n;i++){
a[i]=i;
// cin>>a[i];
Log[i]=Log[i/2]+1;
dp[i].resize(i+1);
}
dp[0]={0};
for(int i=n;i>=1;i--){
mn[i][0]=mx[i][0]=a[i];
for(int j=1;j<15;j++){
mn[i][j]=min(mn[i][j-1],mn[min(i+(1<<j-1),n)][j-1]);
mx[i][j]=max(mx[i][j-1],mx[min(i+(1<<j-1),n)][j-1]);
}
}
for(int i=1;i<=n;i++){
dp[i][1]=solv(1,i);
dp[i][i]=0;
loc[i]={{i,0}};
for(int j=2;j<i;j++){
while(now[j-1]+1<loc[j-1].size()&&loc[j-1][now[j-1]+1].second<=i)now[j-1]++;
dp[i][j]=dp[loc[j-1][now[j-1]].first][j-1]+solv(loc[j-1][now[j-1]].first+1,i);
// cout<<loc[j-1][now[j-1]].first<<" "<<loc[j-1][now[j-1]].second<<" "<<loc[j-1][now[j-1]+1].second<<" "<<loc[j-1].size()<<"\n";
}
// cout<<"\n";
for(int j=1;j<i;j++){
while(loc[j].size()){
int tmp=loc[j].back().first,nw=find(tmp,i,dp[tmp][j],dp[i][j]);
if(0){
// if(nw<=loc[j].back().second){
loc[j].pop_back();
}
else{
loc[j].push_back({i,nw});
break;
}
}
}
// for(int j=1;j<=i;j++)cout<<dp[i][j]<<" ";cout<<"\n";
}
for(int j=1;j<=n;j++)cout<<dp[n][j]<<" ";cout<<"\n";
}
int main(){
ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
int t=1;
// cin>>t;
while(t--)solve();
return 0;
}
/*
*/
Details
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Test #1:
score: 0
Runtime Error
input:
2 -1 3 -1 2 -1 4 1 -1 1 -1 -1 4 2 -1 3 -1