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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#337003 | #8285. Shell Sort | ucup-team197# | WA | 0ms | 5732kb | C++14 | 1.8kb | 2024-02-25 00:58:51 | 2024-02-25 00:58:52 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll mod=1e9+7;
int n,m,z;
int d[11],p[35];
int dp[1048576];
int val[1048576];
ll ways[1048576];
int bx[31],pf[31];
int track[11];
int pos[11];
int pen[31],out[31];
int main(){
ios::sync_with_stdio(false);cin.tie(0);
cin >> n >> m;
for(int i=1; i<=m ;i++){
cin >> d[i];
}
z=d[1];z=min(z,n);
pf[0]=1;
int ext=0;
for(int i=0; i<z ;i++){
bx[i]=(n-i+z-1)/z;
pf[i+1]=pf[i]*(bx[i]+1);
ext+=(bx[i])*(bx[i]-1)/2;
}
ways[0]=1;
int ans;
ll wans;
for(int i=1; i<pf[z] ;i++){
ll mul=0;
//cout << "Doing " << i << endl;
for(int j=0; j<z ;j++){
int cur=i%pf[j+1]/pf[j];
pos[j]=j+(cur-1)*z;
track[j]=0;
for(int k=j; k<n ;k+=z){
if(k<j+cur*z) p[k]=0;
else p[k]=1;
}
}
/*for(int j=0; j<n ;j++) cout << p[j];
cout << endl;*/
for(int j=0; j<n ;j++) track[j]=0;
for(int r=2; r<=m ;r++){
for(int j=0; j<n ;j++) pen[j]=0;
for(int j=0; j<d[r] ;j++){
int cnt=0,c0=0;
for(int k=j; k<n ;k+=d[r]){
if(p[k]==0) c0++,pen[k]=cnt;
else cnt++;
}
for(int k=j; k<n ;k+=d[r]){
if(c0-->0) p[k]=0;
else p[k]=1;
out[k]=j+(c0-1)*d[r];
}
}
for(int j=0; j<z ;j++){
if(pos[j]<0) continue;
track[j]+=pen[pos[j]];
pos[j]=out[pos[j]];
}
}
dp[i]=-1e9;
for(int j=0; j<z ;j++){
int cur=i%pf[j+1]/pf[j];
if(cur==0) continue;
if(dp[i]<dp[i-pf[j]]+track[j]){
dp[i]=dp[i-pf[j]]+track[j];
ways[i]=ways[i-pf[j]];
}
else if(dp[i]==dp[i-pf[j]]+track[j]){
ways[i]=(ways[i]+ways[i-pf[j]])%mod;
}
}
ans=dp[i];
wans=ways[i];
//cout << dp[i] << ' ' << ways[i] << endl;
}
cout << ans+ext << ' ' << wans << endl;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 5616kb
input:
2 2 2 1
output:
1 1
result:
ok 2 number(s): "1 1"
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 5732kb
input:
5 4 5 4 2 1
output:
2 4
result:
wrong answer 1st numbers differ - expected: '6', found: '2'