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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#160161 | #7109. Traveling on the Axis | ucup-team266# | AC ✓ | 4ms | 5272kb | C++14 | 1.4kb | 2023-09-02 19:39:06 | 2023-09-02 19:39:07 |
Judging History
answer
/*
Things to notice:
1. do not calculate useless values
2. do not use similar names
Things to check:
1. submit the correct file
2. time (it is log^2 or log)
3. memory
4. prove your naive thoughts
5. long long
6. corner case like n=0,1,inf or n=m
7. check if there is a mistake in the ds or other tools you use
8. fileio in some oi-contest
9. module on time
10. the number of a same divisor in a math problem
11. multi-information and queries for dp and ds problems
*/
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define pii pair<long long,long long>
#define mp make_pair
#define pb push_back
const int mod=998244353;
const int inf=0x3f3f3f3f;
const int INF=1e18;
char s[100005];
int n,ans,dp[100005][2];
void solve()
{
cin>>(s+1);
n=strlen(s+1);
for(int i=0;i<=n;i++) dp[i][0]=dp[i][1]=0;
ans=0;
// dp[0][0]=1;
for(int i=1;i<=n;i++)
{
// dp[i][0]++;
if(s[i]=='0')
{
ans+=dp[i-1][0]*(n-i+1)+(n-i+1);
dp[i][0]+=dp[i-1][1];
dp[i][0]+=dp[i-1][0];
dp[i][0]++;
}
else
{
ans+=dp[i-1][1]*(n-i+1);
dp[i][1]+=dp[i-1][1];
dp[i][1]+=dp[i-1][0];
dp[i][1]++;
}
// cout<<i<<" "<<ans<<"\n";
}
// cout<<ans<<"\n";
for(int i=1;i<=n;i++) ans+=(n-i+1)*(n-i+2)/2;
cout<<ans<<"\n";
}
signed main()
{
ios::sync_with_stdio(0);
cin.tie(0);
int _=1;
cin>>_;
while(_--) solve();
return 0;
}
这程序好像有点Bug,我给组数据试试?
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3608kb
input:
3 101 011 11010
output:
12 15 43
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 4ms
memory: 5272kb
input:
6107 1010101 010110100110101 1010 1010101010010101010 101011 0101101011010101010 0101101011 11011010101 010 1011010 10110101010101010100 010101010110101 10101010101011 0101010101010101011 00101010011000 1010101010010110110 01010101001010101010 101010101010101 100100101010101010 01 011 0101010100101 ...
output:
96 889 24 1515 69 1567 279 345 14 106 1702 791 621 1447 764 1615 1755 736 1333 6 15 542 44 1689 1515 140 833 497 596 24 1640 694 462 30 425 14 1041 1446 96 504 124 75 560 970 771 945 6 1 321 137 786 720 206 769 46 103 225 74 554 2 100 529 260 207 197 2 197 1041 140 857 207 1 74 1604 41 343 1041 14 1...
result:
ok 6107 lines
Extra Test:
score: 0
Extra Test Passed