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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 |
---|---|---|---|---|---|---|---|---|---|
#813864 | #9614. 分治 | zwh2008 | 100 ✓ | 1880ms | 13336kb | C++14 | 1.8kb | 2024-12-14 13:09:22 | 2024-12-14 13:09:23 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using pi=pair<int,int>;
#define fi first
#define se second
const int N=2e5+5,mod=998244353;
int n,to[N],mxt[N];
ll ans,fc[N],inv[N],pw[N],f[N],g[N];
string a;
ll qp(ll a,int b){ll ans=1;for(;b;b>>=1,a=a*a%mod)if(b&1)ans=ans*a%mod;return ans;}
ll C(int n,int m){return n<m||m<0?0:fc[n]*inv[m]%mod*inv[n-m]%mod;}
ll P(int n){return n<0?0:pw[n];}
ll S(ll*f,int x){return x<0?0:f[x];}
void init(int n) {
fc[0]=pw[0]=1;
for(int i=1;i<=n;i++)fc[i]=fc[i-1]*i%mod,pw[i]=pw[i-1]*2%mod;
inv[n]=qp(fc[n],mod-2);
for(int i=n-1;~i;i--)inv[i]=inv[i+1]*(i+1)%mod;
}
int main() {
ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
cin>>a,n=a.size(),init(n),a=' '+a;
for(int i=1;i<=n;i++)ans=(ans*2+a[i]-'0')%mod;
int sq=sqrt(n);a[1]='0';
for(int i=1;i<=n;i++)to[i]=(a[i]=='0'?to[i-1]+1:0),mxt[i]=max(mxt[i-1],to[i]);
for(int i=2;i<=n;i++)if(a[i]=='1')ans=(ans+pw[n-i]*max(mxt[i],to[i-1]+1))%mod;
for(int K=1;K<=sq;K++) {
for(int i=0;i<K;i++)f[i]=g[i]=0;g[K-1]=1;
for(int i=K;i<=n;i++)f[i]=(f[i-K]+C(i,K)*P(i-K))%mod,g[i]=(g[i-K]+C(i,K-1)*P(i-K+1))%mod;
for(int i=2;i<=n;i++)if(a[i]=='1') {
int m=n-i,nt=to[i-1]+1,mx=max(nt,mxt[i]);
ans=(ans+(K&1?1:-1)*(S(f,m-(max(sq,mx)+1)*K)+S(g,m+nt-(max(sq,mx)+1)*K)))%mod;
}
ans=(ans+(K&1?1:-1)*(S(f,n-1-(sq+1)*K)+S(g,n-1-(sq+1)*K)))%mod;
}
for(int J=1;J<=sq;J++) {
for(int i=0;i<=J;i++)f[i]=g[i]=0;g[J]=1;
for(int i=J+1;i<=n;i++)f[i]=(f[i-1]*2-f[i-1-J]-P(i-1-J))%mod,g[i]=(g[i-1]*2-g[i-1-J])%mod;
for(int i=2;i<=n;i++)if(a[i]=='1') {
int m=n-i,nt=to[i-1]+1;
if(J>max(nt,mxt[i]))ans=(ans-f[m]+g[m+nt])%mod;
}ans=(ans-f[n-1]+g[n-1])%mod;
}
cout<<(ans+mod)%mod<<'\n';
return 0;
}
詳細信息
Subtask #1:
score: 10
Accepted
Test #1:
score: 10
Accepted
time: 0ms
memory: 9792kb
input:
110
output:
15
result:
ok 1 number(s): "15"
Test #2:
score: 10
Accepted
time: 1ms
memory: 9784kb
input:
101
output:
12
result:
ok 1 number(s): "12"
Subtask #2:
score: 10
Accepted
Dependency #1:
100%
Accepted
Test #3:
score: 10
Accepted
time: 1ms
memory: 9764kb
input:
111110
output:
198
result:
ok 1 number(s): "198"
Test #4:
score: 10
Accepted
time: 0ms
memory: 9708kb
input:
1001001
output:
253
result:
ok 1 number(s): "253"
Subtask #3:
score: 20
Accepted
Dependency #2:
100%
Accepted
Test #5:
score: 20
Accepted
time: 0ms
memory: 9780kb
input:
10100011000100111
output:
386882
result:
ok 1 number(s): "386882"
Test #6:
score: 20
Accepted
time: 1ms
memory: 9776kb
input:
111010011111010110
output:
1107742
result:
ok 1 number(s): "1107742"
Subtask #4:
score: 5
Accepted
Test #7:
score: 5
Accepted
time: 1ms
memory: 9736kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
output:
412796008
result:
ok 1 number(s): "412796008"
Test #8:
score: 5
Accepted
time: 0ms
memory: 9788kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
output:
818656648
result:
ok 1 number(s): "818656648"
Subtask #5:
score: 5
Accepted
Dependency #3:
100%
Accepted
Dependency #4:
100%
Accepted
Test #9:
score: 5
Accepted
time: 1ms
memory: 11784kb
input:
10000000100000010010011110111101101110000000000001100000011000111111010011010101010000101001110110010001100110000110111101000101001111101111001010001001011101011111010000100010111100110000001101111
output:
703266161
result:
ok 1 number(s): "703266161"
Test #10:
score: 5
Accepted
time: 1ms
memory: 9916kb
input:
110100000100001000101000010010101000110111101010110000101001001100100111000011100101110110010000001111010011101001111110110010001110011101001111010101100100010011101010101111111111010110001100100110
output:
330527406
result:
ok 1 number(s): "330527406"
Subtask #6:
score: 5
Accepted
Dependency #4:
100%
Accepted
Test #11:
score: 5
Accepted
time: 2ms
memory: 9744kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
340672883
result:
ok 1 number(s): "340672883"
Test #12:
score: 5
Accepted
time: 2ms
memory: 9760kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
555946758
result:
ok 1 number(s): "555946758"
Subtask #7:
score: 10
Accepted
Dependency #5:
100%
Accepted
Dependency #6:
100%
Accepted
Test #13:
score: 10
Accepted
time: 0ms
memory: 9960kb
input:
110011100110101000000110101010111111001101101011010110100100110010111110110110000111011001110000101111110111011111000110001011011011101100001100100011010010111111010110010000101001001000100001100100000001000111110100000101001011100001100011011110110101101111110011100111001010001010001111001110111100...
output:
324123594
result:
ok 1 number(s): "324123594"
Test #14:
score: 10
Accepted
time: 4ms
memory: 9948kb
input:
110100110100110110001011100000011010000010000101100100001101100100110000101000111001111100001110001001101010110010111101000100111010001011001110101010001101111010000011000010110011000011100101110100000001011100111000101111010100001101011010100101110000010001101001000100111001101101110000101101011011...
output:
209285599
result:
ok 1 number(s): "209285599"
Subtask #8:
score: 10
Accepted
Dependency #6:
100%
Accepted
Test #15:
score: 10
Accepted
time: 475ms
memory: 12932kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
468567454
result:
ok 1 number(s): "468567454"
Test #16:
score: 10
Accepted
time: 1028ms
memory: 13052kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
12752860
result:
ok 1 number(s): "12752860"
Subtask #9:
score: 25
Accepted
Dependency #1:
100%
Accepted
Dependency #2:
100%
Accepted
Dependency #3:
100%
Accepted
Dependency #4:
100%
Accepted
Dependency #5:
100%
Accepted
Dependency #6:
100%
Accepted
Dependency #7:
100%
Accepted
Dependency #8:
100%
Accepted
Test #17:
score: 25
Accepted
time: 1878ms
memory: 13336kb
input:
101100010100101011010110001111101101001010000111001111000100110110010111101100011011011111010110000000011110000010100110111110110001101001101101001110101110011000010100100101000011000010000101011001011011000000100111011110100010000100001101011110100101110000100011000101100000111111100110000111010000...
output:
711712397
result:
ok 1 number(s): "711712397"
Test #18:
score: 25
Accepted
time: 1880ms
memory: 13080kb
input:
110101110100100010101100000110000110101101111100110011100111111110000101111001101001111000110111100111110111010001000010111111110000001001011110101110001011010010010011101000110110000110110101000100111000100110101111011101111101000010000101001001000010011011000011001100111111011000111000010000100111...
output:
171668334
result:
ok 1 number(s): "171668334"
Test #19:
score: 25
Accepted
time: 1099ms
memory: 13076kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
397846555
result:
ok 1 number(s): "397846555"
Test #20:
score: 25
Accepted
time: 1226ms
memory: 13332kb
input:
100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...
output:
592103795
result:
ok 1 number(s): "592103795"
Extra Test:
score: 0
Extra Test Passed