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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 |
---|---|---|---|---|---|---|---|---|---|
#876106 | #6143. 滚榜 | RDFZchenyy | 100 ✓ | 119ms | 466752kb | C++14 | 1.7kb | 2025-01-30 17:13:06 | 2025-01-30 17:13:06 |
Judging History
answer
#include<bits/stdc++.h>
using ll=long long;
ll n,m;
ll a[15];
ll f[8192][15][501];
// ll tmpv[40005];
// ll* tmp=tmpv+20000;
// ll g[13][500][500];
// std::pair<ll,ll>p[13];
int main(){
std::ios::sync_with_stdio(false);
std::cin.tie(0),std::cout.tie(0);
std::cin>>n>>m;
for(ll i=0;i<n;i++) std::cin>>a[i];
// std::sort(a,a+n);
for(ll i=0;i<n;i++){
ll cnt=0;
for(ll j=0;j<i;j++) cnt=std::max(cnt,a[j]-a[i]+1);
for(ll j=i+1;j<n;j++) cnt=std::max(cnt,a[j]-a[i]);
cnt*=n;
if(cnt<=m) f[(1<<i)][i][cnt]=1;
}
for(ll s=1;s<(1<<n);s++){
ll l=n-__builtin_popcountll(s);
for(ll i=0;i<n;i++){
if((s>>i)&1) for(ll j=0;j<n;j++){
if(1^((s>>j)&1)){
ll t=s|(1<<j);
if(a[i]<a[j]+(j<i)){
for(ll k=0;k<=m;k++){
f[t][j][k]+=f[s][i][k];
}
}else if(j<i){
ll x=(a[i]-a[j])*l;
for(ll k=0;x<=m;k++,x++){
f[t][j][x]+=f[s][i][k];
}
}else{
ll x=(a[i]-a[j]+1)*l;
for(ll k=0;x<=m;k++,x++){
f[t][j][x]+=f[s][i][k];
// std::cerr<<"TRANS"<<' '<<t<<' '<<j<<' '<<x<<' '<<"<-"<<' '<<s<<' '<<i<<' '<<k<<'\n';
}
}
}
}
}
}
ll ans=0;
for(ll i=0;i<n;i++){
for(ll j=0;j<=m;j++){
ans+=f[(1<<n)-1][i][j];
}
}
std::cout<<ans<<'\n';
return 0;
}
詳細信息
Pretests
Final Tests
Test #1:
score: 5
Accepted
time: 0ms
memory: 3712kb
input:
2 8 8950 8954
output:
2
result:
ok 1 number(s): "2"
Test #2:
score: 5
Accepted
time: 0ms
memory: 3712kb
input:
2 10 8841 8843
output:
2
result:
ok 1 number(s): "2"
Test #3:
score: 5
Accepted
time: 0ms
memory: 3840kb
input:
3 9 8765 8761 8765
output:
2
result:
ok 1 number(s): "2"
Test #4:
score: 5
Accepted
time: 0ms
memory: 3840kb
input:
3 8 8385 8385 8387
output:
6
result:
ok 1 number(s): "6"
Test #5:
score: 5
Accepted
time: 1ms
memory: 3840kb
input:
3 9 8581 8585 8582
output:
2
result:
ok 1 number(s): "2"
Test #6:
score: 5
Accepted
time: 1ms
memory: 20132kb
input:
8 100 8856 8864 8858 8860 8856 8863 8859 8857
output:
17589
result:
ok 1 number(s): "17589"
Test #7:
score: 5
Accepted
time: 0ms
memory: 18212kb
input:
8 100 8238 8239 8245 8244 8245 8244 8238 8244
output:
32475
result:
ok 1 number(s): "32475"
Test #8:
score: 5
Accepted
time: 1ms
memory: 18312kb
input:
8 100 9804 9806 9807 9802 9801 9803 9801 9806
output:
37012
result:
ok 1 number(s): "37012"
Test #9:
score: 5
Accepted
time: 5ms
memory: 63412kb
input:
10 200 8002 8014 8011 8013 8002 8003 8002 8016 8009 8004
output:
606309
result:
ok 1 number(s): "606309"
Test #10:
score: 5
Accepted
time: 5ms
memory: 63576kb
input:
10 200 8324 8323 8328 8322 8325 8328 8328 8323 8334 8323
output:
2504995
result:
ok 1 number(s): "2504995"
Test #11:
score: 5
Accepted
time: 2ms
memory: 65332kb
input:
10 200 9416 9415 9417 9404 9408 9409 9410 9416 9415 9411
output:
2553164
result:
ok 1 number(s): "2553164"
Test #12:
score: 5
Accepted
time: 5ms
memory: 65328kb
input:
10 200 9422 9430 9425 9425 9425 9423 9431 9428 9432 9434
output:
2687280
result:
ok 1 number(s): "2687280"
Test #13:
score: 5
Accepted
time: 31ms
memory: 243708kb
input:
12 300 9281 9292 9279 9280 9289 9291 9285 9279 9280 9281 9290 9281
output:
197821618
result:
ok 1 number(s): "197821618"
Test #14:
score: 5
Accepted
time: 26ms
memory: 243712kb
input:
12 300 9737 9726 9731 9736 9723 9727 9722 9732 9736 9733 9737 9728
output:
196607151
result:
ok 1 number(s): "196607151"
Test #15:
score: 5
Accepted
time: 24ms
memory: 245348kb
input:
12 300 8707 8708 8712 8704 8705 8704 8716 8711 8713 8712 8702 8710
output:
337047589
result:
ok 1 number(s): "337047589"
Test #16:
score: 5
Accepted
time: 23ms
memory: 245492kb
input:
12 300 9200 9194 9191 9195 9197 9192 9206 9206 9197 9198 9192 9202
output:
164570332
result:
ok 1 number(s): "164570332"
Test #17:
score: 5
Accepted
time: 101ms
memory: 466536kb
input:
13 500 8217 8233 8238 8217 8237 8237 8217 8217 8230 8234 8225 8223 8220
output:
1500488819
result:
ok 1 number(s): "1500488819"
Test #18:
score: 5
Accepted
time: 106ms
memory: 466236kb
input:
13 500 9781 9780 9772 9779 9785 9788 9788 9777 9791 9784 9782 9777 9768
output:
4627756434
result:
ok 1 number(s): "4627756434"
Test #19:
score: 5
Accepted
time: 112ms
memory: 466632kb
input:
13 500 8096 8078 8103 8104 8085 8089 8081 8085 8102 8095 8097 8100 8090
output:
1388414345
result:
ok 1 number(s): "1388414345"
Test #20:
score: 5
Accepted
time: 119ms
memory: 466752kb
input:
13 500 8739 8728 8743 8727 8730 8735 8733 8738 8731 8743 8728 8722 8722
output:
3106123719
result:
ok 1 number(s): "3106123719"
Extra Test:
score: 0
Extra Test Passed