QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #221883 | #1780. Intact Intervals | zhouyixian | WA | 1206ms | 74520kb | C++14 | 1009b | 2023-10-21 14:58:01 | 2023-10-21 14:58:02 |
Judging History
answer
#include<bits/stdc++.h>
#include<random>
using namespace std;
const int N=1e6+10,mod=1e9+7;
#define ull unsigned long long
int n,a[N],b[N],id[N];
int cnt[N],tot;
ull v[N],h[N];
mt19937 mt(time(0));
uniform_int_distribution<>gen(1,1e12);
map<int,ull> hsh;
int f2pow(int n){
long long ans=1,base=2;
while(n){
if(n&1)ans=ans*base%mod;
base=base*base%mod;
n>>=1;
}
return ans;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin>>n;
for(int i=1;i<=n;++i){
cin>>a[i];
if(!hsh.count(a[i]))
hsh[a[i]]=gen(mt);
a[i]=hsh[a[i]];
}
for(int i=1;i<=n;++i){
cin>>b[i];
b[i]=hsh[b[i]];
}
ull ha=0,hb=0;
for(int i=1;i<=n;++i){
ha+=a[i];
hb+=b[i];
h[i]=v[i]=ha-hb;
}
sort(v+1,v+n+1);
tot=unique(v+1,v+n+1)-v;
for(int i=1;i<=n;++i)
id[i]=lower_bound(v+1,v+tot,h[i])-v;
for(int i=1;i<=n;++i)
cnt[id[i]]++;
long long ans=0;
for(int i=1;i<=tot;++i)
ans+=f2pow(cnt[i])+mod-cnt[i]-1;
cout<<ans%mod<<endl;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 14068kb
input:
2 10 9 9 10
output:
0
result:
ok single line: '0'
Test #2:
score: 0
Accepted
time: 0ms
memory: 13992kb
input:
5 3 6 9 10 6 3 10 6 9 6
output:
4
result:
ok single line: '4'
Test #3:
score: 0
Accepted
time: 2ms
memory: 14116kb
input:
10 10 10 0 4 0 5 3 8 5 3 3 0 8 5 0 4 3 10 5 10
output:
9
result:
ok single line: '9'
Test #4:
score: 0
Accepted
time: 1ms
memory: 13992kb
input:
100 53 74 39 7 86 14 54 63 86 33 1 33 94 28 65 93 79 52 3 22 53 20 69 59 29 8 42 7 18 33 27 72 10 19 65 30 29 1 57 39 41 6 9 5 92 15 99 22 72 18 81 7 51 82 57 28 4 27 65 99 55 8 57 76 61 13 19 89 9 79 76 95 11 68 9 52 79 24 99 52 65 30 34 77 64 99 10 30 41 12 91 90 13 24 76 41 26 84 51 22 99 89 24 5...
output:
1
result:
ok single line: '1'
Test #5:
score: 0
Accepted
time: 0ms
memory: 14048kb
input:
100 1 8 7 6 4 6 8 10 9 10 7 8 8 9 7 5 7 8 7 10 10 0 2 5 6 6 5 4 1 8 3 1 8 0 3 2 0 8 0 8 6 0 1 2 2 2 0 10 5 0 6 4 2 8 8 10 5 1 1 5 8 9 9 0 6 7 3 0 3 6 5 8 4 9 2 9 2 8 3 4 5 0 3 10 6 9 7 0 10 9 9 8 5 10 0 1 8 2 2 10 4 0 3 8 2 6 5 6 10 4 10 8 3 8 4 8 6 0 1 0 2 7 0 5 1 6 9 0 7 2 0 1 5 5 7 6 0 9 10 4 0 2...
output:
13
result:
ok single line: '13'
Test #6:
score: 0
Accepted
time: 2ms
memory: 13996kb
input:
100 1 2 0 0 2 1 1 1 1 1 0 0 2 0 1 2 1 0 0 2 1 2 0 2 0 0 1 2 2 2 0 0 0 1 1 1 1 0 0 0 2 2 2 2 0 2 1 2 2 1 2 1 1 1 1 2 2 0 1 0 0 0 0 1 0 1 2 0 2 2 2 1 1 2 1 1 0 1 2 2 0 2 2 1 2 1 1 1 1 2 0 1 1 2 0 1 0 2 2 0 0 1 1 1 1 2 2 1 0 0 2 2 0 0 1 0 2 2 1 0 1 2 2 0 1 1 1 2 1 0 0 2 2 0 1 1 1 0 1 1 2 1 2 2 2 1 2 2 ...
output:
1075
result:
ok single line: '1075'
Test #7:
score: 0
Accepted
time: 6ms
memory: 14468kb
input:
10000 2140 5310 9949 84 2706 4404 6310 8451 6995 8883 4817 8214 1668 4724 1674 839 2900 7773 8536 3712 3056 4683 405 1826 9937 5284 9614 8701 4235 8394 4678 6904 3425 2458 2343 6893 5819 5207 370 9231 3018 2552 1381 4495 8465 2312 6937 907 3333 4236 8006 6939 4945 1667 1528 5043 5298 2278 3634 6824 ...
output:
4
result:
ok single line: '4'
Test #8:
score: 0
Accepted
time: 4ms
memory: 14132kb
input:
10000 82 19 42 67 24 91 33 53 56 16 30 88 22 26 13 99 93 98 62 6 18 34 75 91 91 39 16 56 68 67 36 90 86 39 10 20 37 52 56 4 69 18 97 82 48 35 21 7 24 42 95 99 66 47 1 37 42 90 86 47 36 82 67 27 11 58 62 10 29 10 87 12 73 62 64 27 58 39 36 98 43 25 76 37 96 39 65 64 61 45 65 80 23 56 95 49 45 69 70 5...
output:
117
result:
ok single line: '117'
Test #9:
score: 0
Accepted
time: 3ms
memory: 14144kb
input:
10000 0 1 0 1 2 2 2 2 2 0 1 0 0 1 1 2 0 2 1 0 1 2 2 1 1 1 2 0 2 2 0 0 2 2 1 0 2 1 2 2 2 0 2 1 2 1 2 0 2 2 0 1 0 1 0 1 0 0 0 1 1 0 1 2 0 1 0 2 0 1 2 0 1 2 1 0 1 2 2 0 2 1 1 1 0 2 1 0 2 1 2 0 2 0 0 0 1 0 1 1 2 2 2 0 0 1 2 2 0 1 1 0 2 1 2 1 1 0 2 1 2 0 0 2 1 1 2 1 0 2 1 0 2 2 1 2 1 0 0 0 1 2 1 2 0 2 2 ...
output:
661070230
result:
ok single line: '661070230'
Test #10:
score: -100
Wrong Answer
time: 1206ms
memory: 74520kb
input:
1000000 53619079 982512764 860871815 530378910 588856185 454683791 264369639 297818635 824975749 256072724 56501959 644097074 258832116 294895621 430606412 64927560 98316617 241951788 814040050 543600636 502382486 898906645 914890506 424109890 191843578 913062126 513568981 753685691 579339567 739779...
output:
2
result:
wrong answer 1st lines differ - expected: '1', found: '2'