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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#813864#9614. 分治zwh2008100 ✓1880ms13336kbC++141.8kb2024-12-14 13:09:222024-12-14 13:09:23

Judging History

This is the latest submission verdict.

  • [2024-12-14 13:09:23]
  • Judged
  • Verdict: 100
  • Time: 1880ms
  • Memory: 13336kb
  • [2024-12-14 13:09:22]
  • Submitted

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;
}

Details

Tip: Click on the bar to expand more detailed information

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