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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#211254 | #962. Thanks to MikeMirzayanov | Wu_Ren | WA | 1ms | 3780kb | C++14 | 1.6kb | 2023-10-12 13:41:19 | 2023-10-12 13:41:20 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int n,a[20010],b[20010];
int c[20010],le[20010],t=0;
vector<int>tp;
vector<vector<int> >ans;
bool tg=0;
void get(int x){
tp.clear();
for(int l=0,r;l<n;l=r){
r=min(l+(1<<x),n);
t=0;
for(int i=l;i<r;i++){
if(!t||c[t]!=b[i]) c[++t]=b[i],le[t]=1;
else le[t]++;
}
int nw=c[1]==0?1:2;
for(int i=1;i<=t;i++,nw+=nw&1?1:-1){
if(i+nw-1>t) nw--;
if(nw==2) tp.push_back(le[i]+le[i+1]),i++;
else tp.push_back(le[i]);
}
}
if(tg) reverse(tp.begin(),tp.end());
}
void calc(){
int sum=0;
for(int i:tp) sum+=i;
assert(sum==n);
if(tp.size()<=1){
reverse(b,b+n),reverse(a,a+n),tg^=1;
return;
}
int l=0;
ans.push_back(tp);
if(tg) reverse(tp.begin(),tp.end());
for(int i:tp){
reverse(b+l,b+l+i);
reverse(a+l,a+l+i);
l+=i;
}
tg^=1;
}
bool chk(int x){
if(tg) reverse(b,b+n);
for(int l=0,r;l<n;l=r){
r=min(l+(1<<x),n);
int ty=0;
for(int i=l;i<r;i++){
if(b[i]) ty|=1;
else if(ty) ty|=2;
}
if(ty==3){
if(tg) reverse(b,b+n);
return 1;
}
}
if(tg) reverse(b,b+n);
return 0;
}
void work(int x){
for(int i=0;i<n;i++) b[i]=(a[i]>>x)&1;
bool fl=chk(x+1);
while(fl){
fl=0;
get(x+1);
calc();
fl=chk(x+1);
}
}
int main(){
scanf("%d",&n);
for(int i=0;i<n;i++) scanf("%d",&a[i]),a[i]--;
for(int i=14;i>=0;i--){
work(i);
}
if(tg){
tp.clear();
for(int i=0;i<n;i++) tp.push_back(1);
calc();
}
printf("%d\n",ans.size());
for(auto &j:ans){
printf("%d ",j.size());
for(int i:j) printf("%d ",i);puts("");
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 1ms
memory: 3780kb
input:
4 3 1 2 4
output:
4 2 3 1 2 2 2 3 1 1 2 4 1 1 1 1
result:
ok OK
Test #2:
score: 0
Accepted
time: 1ms
memory: 3720kb
input:
6 6 5 4 3 2 1
output:
3 2 2 4 2 4 2 6 1 1 1 1 1 1
result:
ok OK
Test #3:
score: 0
Accepted
time: 1ms
memory: 3620kb
input:
1 1
output:
0
result:
ok OK
Test #4:
score: -100
Wrong Answer
time: 0ms
memory: 3628kb
input:
10 3 8 7 4 6 2 9 10 1 5
output:
6 2 6 4 2 2 8 6 1 2 2 2 1 2 7 2 1 1 2 1 2 1 5 2 2 1 3 2 10 1 1 1 1 1 1 1 1 1 1
result:
wrong answer the permutation is not sorted