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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#187293 | #5305. Oscar is All You Need | fstqwq | WA | 0ms | 3928kb | C++14 | 4.1kb | 2023-09-24 16:08:20 | 2023-09-24 16:08:20 |
Judging History
answer
#include<bits/stdc++.h>
#define N 1100
#define NN 2100
using namespace std;
typedef pair<int,int> PII;
int n,m;
int a[N],b[N],c[N];PII d[N];
bool v[N];
void init(){
m=0;
for(int i=1;i<=n;i++)b[a[i]]=i;
for(int i=1;i<=n;i++){
int x=b[i],y=x;if(x!=1 && a[x]-1==a[x-1])continue;
while(y<n && a[y+1]==a[y]+1)y++;
d[++m]=make_pair(x,y);c[x]=m;
}
m=0;
for(int i=1;i<=n;i++){
if(i==1 || a[i]!=a[i-1]+1)c[++m]=c[i];
}
}
PII zans[N];int anstop;
int ff[N];
void oper1(int x,int y){
zans[++anstop]=make_pair(x,n-x-y);
int zlen=0;
for(int i=x+y+1;i<=n;i++)ff[++zlen]=a[i];
for(int i=x+1;i<=x+y;i++)ff[++zlen]=a[i];
for(int i=1;i<=x;i++)ff[++zlen]=a[i];
for(int i=1;i<=n;i++)a[i]=ff[i];
return ;
}
void oper2(int x,int y){
int xx=0,yy=0;
for(int i=1;i<=x;i++)xx+=d[c[i]].second-d[c[i]].first+1;
for(int i=x+1;i<=x+y;i++)yy+=d[c[i]].second-d[c[i]].first+1;
oper1(xx,yy);
int zlen=0;
for(int i=x+y+1;i<=m;i++)ff[++zlen]=c[i];
for(int i=x+1;i<=x+y;i++)ff[++zlen]=c[i];
for(int i=1;i<=x;i++)ff[++zlen]=c[i];
for(int i=1;i<=m;i++)c[i]=ff[i];
}
int zjj[N];
void solve(){
for(int i=1;i<=m;i++)zjj[c[i]]=i;
for(int i=1;i<m;i++){
int x=zjj[i],y=zjj[i+1];
if(y-x>=2){
oper2(x,y-2-x);
oper2(1,m-2);
return ;
}
else if(y>x && x>=2){
oper2(x-1,1);
oper2(1,m-2);
return ;
}
}
if(c[m]==c[m-1]-1){oper2(m-2,1);}
}
namespace DFS{
PII fv[N];int ftop;
int fuck[N];
int ffa[N],ffb[N];
void finit(){
ftop=0;int cnt=m;
for(int i=1;i<=m;i++){
while(ftop+m-i+1<4 && d[i].first<d[i].second)fv[++ftop]=make_pair(d[i].first,d[i].first),d[i].first++;
fv[++ftop]=d[i];
}
memset(fuck,0,sizeof(fuck));
for(int i=1;i<=4;i++)fuck[fv[i].first]=i,d[i]=fv[i];
m=0;
for(int i=1;i<=n;i++){
if(fuck[i])c[++m]=fuck[i];
}
for(int i=1;i<=4;i++)ffa[i]=c[i];
}
bool check(){
for(int i=1;i<=4;i++){
if(ffa[i]!=i)return 0;
}
return 1;
}
void Zjj(int x,int y){
int len=0;
for(int i=x+y+1;i<=4;i++)ffb[++len]=ffa[i];
for(int i=x+1;i<=x+y;i++)ffb[++len]=ffa[i];
for(int i=1;i<=x;i++)ffb[++len]=ffa[i];
for(int i=1;i<=4;i++)ffa[i]=ffb[i];
}
PII ans[N];int tot;
void add(int x,int y){
ans[++tot]=make_pair(x,y);
Zjj(x,y);
}
void del(){
Zjj(4-ans[tot].first-ans[tot].second,ans[tot].second);
tot--;
}
bool Fuck(){
if(tot>7)return 0;
if(check()==1){
for(int i=1;i<=tot;i++)oper2(ans[i].first,ans[i].second);
return 1;
}
for(int i=1;i<=2;i++){
for(int j=1;i+j<=3;j++){
add(i,j);
if(Fuck()==1){
del();
return 1;
}
del();
}
}
return 0;
}
}
int main(){
int T;scanf("%d",&T);
while(T--){
anstop=DFS::tot=0;
scanf("%d",&n);
for(int i=1;i<=n;i++)scanf("%d",&a[i]);
if(n==3){
if(a[3]<a[1])printf("1\n1 1\n");
else printf("0\n");
continue;
}
init();
while(m>=5){
solve();
init();
// printf("%d\n",anstop);
// for(int i=1;i<=n;i++)printf("%d ",a[i]);
// printf("\n");
}
DFS::finit();
// printf("%d\n",m);
// for(int i=1;i<=m;i++)printf("%d(%d %d) ",c[i],d[i].first,d[i].second);
// printf("\n");
// for(int i=1;i<=m;i++)printf("%d ",DFS::ffa[i]);
// printf("\n");
DFS::Fuck();
printf("%d\n",anstop);
for(int i=1;i<=anstop;i++)printf("%d %d\n",zans[i].first,zans[i].second);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3808kb
input:
2 3 1 3 2 5 4 1 2 3 5
output:
0 6 1 3 2 2 1 3 1 2 2 1 1 1
result:
ok OK in maximum 6 operations
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 3928kb
input:
120 3 1 3 2 3 3 2 1 3 2 3 1 5 1 2 3 4 5 12 11 9 2 8 3 10 6 1 4 7 5 12 36 24 9 7 3 31 15 13 1 4 33 11 29 16 23 2 25 35 21 32 14 6 18 17 26 28 8 27 22 20 36 10 19 34 12 30 5 4 4 2 3 1 5 3 5 2 1 4 4 1 2 4 3 10 5 7 4 9 6 8 1 3 10 2 5 3 1 5 2 4 5 3 5 1 2 4 3 3 1 2 13 3 1 2 11 12 13 8 6 5 4 10 9 7 16 12 8...
output:
0 1 1 1 1 1 1 0 16 3 9 1 1 2 8 1 2 3 9 1 3 4 4 1 4 5 7 1 5 6 4 1 6 7 2 1 7 9 2 1 10 71 8 23 1 1 2 6 1 2 3 9 1 3 4 2 1 4 5 16 1 5 6 11 1 6 7 17 1 7 8 15 1 8 9 11 1 9 10 22 1 10 11 4 1 11 12 18 1 12 13 19 1 13 14 7 1 14 15 4 1 15 16 13 1 16 17 2 1 17 18 13 1 18 19 3 1 19 20 7 1 20 21 12 1 21 22 8 1 22...
result:
wrong answer x+y is greater than n