QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #138993 | #5577. Alchemy | acm202226010311 | WA | 2ms | 3548kb | C++14 | 451b | 2023-08-12 15:45:32 | 2023-08-12 15:51:37 |
Judging History
answer
#include<iostream>
#include<string>
using namespace std;
int main()
{
int ans=0;
string s;
cin>>s;
int l=0,r=s.size()-1;
if(r<3)
{ if(s[l]==s[r])
cout<<0<<endl;
else
cout<<1<<endl;
return 0;
}
while(l<r)
{
if(s[l]!=s[r])
{ if(r-l<=2)
ans+=1;
else if(s[l+1]!=s[r-1])
ans+=1;
else ans+=2;
l+=2;
r-=2;
}
else if(s[l]==s[r])
l++,r--;
}
cout<<ans;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3472kb
input:
ioi
output:
0
result:
ok single line: '0'
Test #2:
score: 0
Accepted
time: 1ms
memory: 3548kb
input:
noi
output:
1
result:
ok single line: '1'
Test #3:
score: 0
Accepted
time: 1ms
memory: 3428kb
input:
ctsc
output:
1
result:
ok single line: '1'
Test #4:
score: 0
Accepted
time: 2ms
memory: 3492kb
input:
fool
output:
2
result:
ok single line: '2'
Test #5:
score: 0
Accepted
time: 1ms
memory: 3428kb
input:
vetted
output:
2
result:
ok single line: '2'
Test #6:
score: 0
Accepted
time: 1ms
memory: 3496kb
input:
aa
output:
0
result:
ok single line: '0'
Test #7:
score: 0
Accepted
time: 1ms
memory: 3468kb
input:
ic
output:
1
result:
ok single line: '1'
Test #8:
score: 0
Accepted
time: 1ms
memory: 3468kb
input:
tlffohemdcncrfrxaqsbzcoyodvbxmhqukvfpahnakexcmacqa
output:
12
result:
ok single line: '12'
Test #9:
score: 0
Accepted
time: 1ms
memory: 3544kb
input:
qrgld
output:
1
result:
ok single line: '1'
Test #10:
score: -100
Wrong Answer
time: 1ms
memory: 3492kb
input:
ejyfprguvwrnrsrykyrotmdjuzroohvlxqhvyeukkvmshtpczyyecpzhsqvkxueqvhlxldhofrzcjdhtotykgrsdnrnvuyrphyjy
output:
34
result:
wrong answer 1st lines differ - expected: '26', found: '34'