QOJ.ac

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
#69124#4900. 数列重排skin_to75 518ms12552kbC++142.4kb2022-12-24 09:55:202022-12-24 09:55:22

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-12-24 09:55:22]
  • 评测
  • 测评结果:75
  • 用时:518ms
  • 内存:12552kb
  • [2022-12-24 09:55:20]
  • 提交

answer

#include<bits/stdc++.h>
#define ll long long
using namespace std;
const int _=1e7+7,mod=998244353;
int m,l,r,X,n,pw[_],ans[_],res,Sum[_];
char s[_];
namespace sub4{
	void solve(){
		res=((ll)n*(n+1)/2-((2ll*n-m+2)*(m-1)/2))%mod;
		printf("%lld\n",(ll)res*pw[m]%mod);
		exit(0);
	}
}
namespace sub5{
	void solve(){
		int s0=X+s[0]-'0',s1=X+s[1]-'0';
		ans[0]=(ll)(n+1)*n/2%mod;ans[1]=(ans[0]-s1%mod+mod)%mod;ans[2]=(ans[0]-n%mod+mod)%mod;
		for(int i=l;i<=r;i++)res=(res^((ll)pw[i]*ans[i]%mod));
		printf("%d\n",res);
		exit(0);
	}
}
namespace sub6{
	void solve(){
		for(int i=l;i<=r;i++){
			if(i==0){res^=((ll)(n+1)*n/2)%mod;continue;}
			int N=m-i,mid=N/2;
			res^=((ll)(mid+1)*(N-mid+1)%mod*pw[i]%mod);
		}
		printf("%d\n",res);
		exit(0);
	}
}
namespace sub1{
	ll calc(int i,int j,int s0,int s1){
		int mid=j/2,P=s1-j;ll S=0,SS=0;
		S+=(ll)mid*(s0-i+1)+(ll)(j-mid)*(s0-i+1);
		SS+=(ll)mid*(s1-mid)+(ll)(j-mid)*(s1-(j-mid));
		mid=P/(s0/i-1);int sb=P-(s0/i-1)*mid,sa=(s0/i-1)-sb;
		S+=(ll)sa*mid*(s0-2*i+2)+(ll)sb*(mid+1)*(s0-2*i+2);
		SS+=(ll)sa*mid*(s1-mid)+(ll)sb*(mid+1)*(s1-(mid+1));
		return S+SS/2;
	}
	void solve(){
		for(int i=l;i<=r;i++){
			if(i==0){res^=((ll)(n+1)*n/2)%mod;continue;}
			int s0=Sum[i-1],s1,sum=0;
			s1=n-s0;sum=((ll)s0*(s0+1)/2-((2ll*s0-i+2)*(i-1)/2))%mod;
			ll Max=0;
			if(s0/i>1){
				int l=0,r=s1;
				while(l+2<r){
					int mid1=(l+r)>>1,mid2=((l+r)>>1)+1;
					if(calc(i,mid1,s0,s1)<calc(i,mid2,s0,s1))l=mid1;
					else r=mid2;
				}
				for(int j=l;j<=r;j++)
					Max=max(Max,calc(i,j,s0,s1));
			}else {
				int mid=s1/2;ll S=0,SS=0;
				S+=(ll)mid*(s0-i+1);
				SS+=(ll)mid*(s1-mid);
				S+=(ll)(s1-mid)*(s0-i+1);
				SS+=(ll)(s1-mid)*(s1-(s1-mid));
				Max=S+SS/2;
			}
			sum=(sum+Max%mod)%mod;
			res^=((ll)pw[i]*sum%mod);
		}
		printf("%d\n",res);
		exit(0);
	}
}
namespace sub0{
	void solve(){
		int s=(ll)(n+1)*n/2%mod;
		for(int i=l;i<=r;i++)
			res^=((ll)pw[i]*s%mod);
		printf("%d\n",res);
		exit(0);
	}
}
int main(){
	scanf("%d%d%d%d",&m,&l,&r,&X);
	scanf("%s",s);pw[0]=1;
	for(int i=1;i<=m;i++)
		pw[i]=(ll)pw[i-1]*233%mod;
	Sum[0]=X+s[0]-'0';
	for(int i=1;i<m;i++)
		Sum[i]=Sum[i-1]+X+s[i]-'0';
	n=X*m;
	for(int i=0;i<m;i++)n+=s[i]-'0';
	if(m==1)sub0::solve();
	if(X==1&&n==m)sub6::solve();
	if(l==m)sub4::solve();
	if(m<=2)sub5::solve();
	sub1::solve();
	return 0;
}

詳細信息

Subtask #1:

score: 5
Accepted

Test #1:

score: 5
Accepted
time: 2ms
memory: 3664kb

input:

2 0 2 2
01

output:

541257

result:

ok 1 number(s): "541257"

Test #2:

score: 0
Accepted
time: 2ms
memory: 3720kb

input:

4 1 4 2
00001

output:

525797597

result:

ok 1 number(s): "525797597"

Test #3:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

9 0 9 1
000000000

output:

711136343

result:

ok 1 number(s): "711136343"

Test #4:

score: 0
Accepted
time: 2ms
memory: 3660kb

input:

1 0 1 9
0

output:

10456

result:

ok 1 number(s): "10456"

Test #5:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

2 1 2 3
11


output:

1518844

result:

ok 1 number(s): "1518844"

Subtask #2:

score: 15
Accepted

Dependency #1:

100%
Accepted

Test #6:

score: 15
Accepted
time: 2ms
memory: 3560kb

input:

21 0 21 9
111010011100100100000

output:

171658329

result:

ok 1 number(s): "171658329"

Test #7:

score: 0
Accepted
time: 0ms
memory: 3520kb

input:

200 0 200 1
00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

output:

287932632

result:

ok 1 number(s): "287932632"

Test #8:

score: 0
Accepted
time: 0ms
memory: 3512kb

input:

120 3 119 1
101000110101001100011100001011101110101010000011101110010101101000111100111100001001010010110001110011001010110001101111

output:

856785458

result:

ok 1 number(s): "856785458"

Test #9:

score: 0
Accepted
time: 1ms
memory: 3564kb

input:

2 0 2 99
10

output:

67513337

result:

ok 1 number(s): "67513337"

Subtask #3:

score: 15
Accepted

Dependency #2:

100%
Accepted

Test #10:

score: 15
Accepted
time: 1ms
memory: 3560kb

input:

10 1 9 499
0110011010

output:

47418354

result:

ok 1 number(s): "47418354"

Test #11:

score: 0
Accepted
time: 2ms
memory: 3604kb

input:

100 0 100 49
1100100011111101111111001000000100010000101010110000011011110100100011111000111101100010001000001100

output:

100314042

result:

ok 1 number(s): "100314042"

Test #12:

score: 0
Accepted
time: 2ms
memory: 3764kb

input:

1000 0 1000 4
1011110001101000100110000111011110101100110011100010001100001101000111100011100011110101000010000100101011010110000110100011011010011000111100100100100001000011001000000000111001010001000000110001001011100010011101010011011110001101000010010000101000100001111101001100100001010010001100...

output:

738329201

result:

ok 1 number(s): "738329201"

Test #13:

score: 0
Accepted
time: 1ms
memory: 3564kb

input:

5000 0 5000 1
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

76076468

result:

ok 1 number(s): "76076468"

Subtask #4:

score: 5
Accepted

Test #14:

score: 5
Accepted
time: 2ms
memory: 3508kb

input:

2 0 1 114514
10

output:

934764137

result:

ok 1 number(s): "934764137"

Test #15:

score: 0
Accepted
time: 2ms
memory: 3664kb

input:

2 0 1 1919810
01

output:

685371514

result:

ok 1 number(s): "685371514"

Test #16:

score: 0
Accepted
time: 2ms
memory: 3560kb

input:

2 0 1 500000000
00

output:

318651831

result:

ok 1 number(s): "318651831"

Subtask #5:

score: 10
Accepted

Test #17:

score: 10
Accepted
time: 6ms
memory: 12452kb

input:

1000000 1000000 1000000 928
01100010010000000101111110001111011101111000011110100101011110011001001000011000110101101100111110000100101010111001111100010011100110000000111110110100001100000000011101100001010001010000010000001001000110011111010101111100001001110110010100000011000010010001111010011100...

output:

437299311

result:

ok 1 number(s): "437299311"

Test #18:

score: 0
Accepted
time: 1ms
memory: 3604kb

input:

100 100 100 10000000
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

output:

119118463

result:

ok 1 number(s): "119118463"

Subtask #6:

score: 10
Accepted

Test #19:

score: 10
Accepted
time: 11ms
memory: 12544kb

input:

1000000 0 1000000 1
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

852768823

result:

ok 1 number(s): "852768823"

Test #20:

score: 0
Accepted
time: 20ms
memory: 12452kb

input:

1000000 0 1000000 1
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

852768823

result:

ok 1 number(s): "852768823"

Subtask #7:

score: 15
Accepted

Test #21:

score: 15
Accepted
time: 21ms
memory: 12512kb

input:

1000000 0 9823 627
01110001011101001100010011100101001011000011011110001101010000000101010111110111110010010001110100101001111000111100011101111001000000100111000010010100010101110110111110100010101010001110111001100011010001111000101010000110010010101110101010111110110001110111111000001110000110011...

output:

383638431

result:

ok 1 number(s): "383638431"

Test #22:

score: 0
Accepted
time: 16ms
memory: 12452kb

input:

1000000 456755 465755 982
0100111111100111100010100011110111111101011111101110010011101011110011111010110000110001101001011101000110111100110100101111101011111010101011101000011101100000000111000010101011011000111010101101111011100101010010000110101011110010101011111101110101100010000100001110000100...

output:

982882798

result:

ok 1 number(s): "982882798"

Test #23:

score: 0
Accepted
time: 3ms
memory: 3516kb

input:

1000 0 1000 999999
11101000001100101110100011011111010000110101000000010101111010110110100110000001101110100011010111001000000010110101110001010111101000100010010010110000000001011110010010101111110000100001000111000010110001100100011100001000111001110110001010100000110110000110001111101101000010111...

output:

337235666

result:

ok 1 number(s): "337235666"

Test #24:

score: 0
Accepted
time: 12ms
memory: 12544kb

input:

1000000 990001 1000000 999
110110000110101111001000001001011000010000101001111110001101100011001001111001010001110110010111110100000101110000101101000111001100010100010100001001001011011100001010111100110110011001110010001110011001111100011001100111110000111011011100100100011111101100011000100011011...

output:

794028825

result:

ok 1 number(s): "794028825"

Subtask #8:

score: 0
Time Limit Exceeded

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

Test #25:

score: 15
Accepted
time: 500ms
memory: 12508kb

input:

1000000 1 999999 632
111111100000011110001111101100010010111100000010101111111001010001101011101110001010010101001000111110101010100010011001101111011111011000011111011100101011110011000100100110111100101010000110010011110010111011001011001001001111000100000011101001100011011001100100011010000010100...

output:

610044514

result:

ok 1 number(s): "610044514"

Test #26:

score: 0
Accepted
time: 518ms
memory: 12308kb

input:

1000000 0 1000000 888
11011001110110111010100110110001000101110100001111110000011110101010110001100101010001110101010111001110100000110101000000011001111100100000010101100000011100110001011010110100001100111010100111011000110100100101110010100001100100000101000001101011010111001000101001110001111000...

output:

255140225

result:

ok 1 number(s): "255140225"

Test #27:

score: 0
Accepted
time: 508ms
memory: 12552kb

input:

1000000 0 1000000 1000
0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

1066353724

result:

ok 1 number(s): "1066353724"

Test #28:

score: 0
Accepted
time: 2ms
memory: 3504kb

input:

100 0 100 9999999
1000101010111010100001001100001001100101000000111000000000111010000000000000101001110011001000111011

output:

583823543

result:

ok 1 number(s): "583823543"

Test #29:

score: -15
Time Limit Exceeded

input:

2000000 0 2000000 499
11100010011000101100101001000010010011110000000110011101001000100010101101010001011001001011100000111010100110011111001100100101000001000010010000000000011111011100100100110001110011101100110101001011011101001111010100010011001101111110110100010011110111010110100000101100101100...

output:


result:


Subtask #9:

score: 0
Skipped

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:

0%