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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#644114 | #9346. Binary Numbers | planckconstant | TL | 0ms | 3620kb | C++14 | 1.5kb | 2024-10-16 11:00:09 | 2024-10-16 11:00:10 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
const int mod=100000007;
int dp[(1<<19)][19][19];
void solve()
{
int n,m;
cin>>n>>m;
vector<pair<int,int>>a(n+5);
for(int i=1;i<=n;i++){
cin>>a[i].first>>a[i].second;
}
for(int i=0;i<=n;i++){
for(int j=0;j<=m;j++){
for(int k=0;k<=m;k++){
dp[i][j][k]=0;
}
}
}
dp[0][m][0]=1;
auto get_lca=[&m](int a,int b)->int{
int ans=0;
for(int i=m-1;i>=0;i--){
if((a>>i)^(b>>i)){
break;
}
ans++;
}
return ans;
};
for(int i=1;i<=n;i++){
for(int j=a[i].first;j<=a[i].second;j++){
int k1=get_lca(j,a[i].second);
int k2=m;
if(i!=n)
k2=get_lca(j,a[i+1].first);
int k3=get_lca(j,a[i].first);
int k4=m;
if(i!=n)
k4=get_lca(j,a[i-1].second);
for(int k=0;k<=m;k++){
for(int o=0;o<=m;o++){
if(k4<=k&&k3>=o){
dp[i][k1][k2]=(dp[i][k1][k2]+dp[i-1][k][o]*j%mod)%mod;
}
}
}
}
}
int re=0;
for(int i=0;i<=m;i++){
re=(re+dp[n][i][m])%mod;
}
cout<<re<<'\n';
}
signed main(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int T=1;
cin >> T;
while(T--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3620kb
input:
1 2 2 0 1 2 3
output:
5
result:
ok single line: '5'
Test #2:
score: -100
Time Limit Exceeded
input:
20 4 6 0 1 2 3 4 6 7 7 8 11 12 15 9 39 0 31 32 47 48 51 52 63 64 87 88 92 93 95 96 127 128 143 144 159 160 167 168 175 176 191 192 207 208 255 256 263 264 271 272 283 284 287 288 289 290 295 296 303 304 319 320 351 352 357 358 367 368 375 376 383 384 391 392 399 400 403 404 407 408 415 416 443 444 4...