#include<bits/stdc++.h>
using namespace std;
string s;
int main()
{
cin>>s;
long long int len = s.length();
if(len %2 == 1)
{
double fir = len/2;
double sec = len/2+1;
double ans = (0+fir-1)*fir/4 + (0+sec-1)*sec / 4;
printf("%.4lf",ans);
}
else
{
double fir = len/2;
double sec = len/2;
double ans = (0+fir-1)*fir/4 + (0+sec-1)*sec / 4;
printf("%.4lf",ans);
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
found '100800.5000000000', expected '100800.5000000000', error '0.0000000000' |
2 |
Correct |
1 ms |
348 KB |
found '0.0000000000', expected '0.0000000000', error '-0.0000000000' |
3 |
Correct |
0 ms |
348 KB |
found '0.0000000000', expected '0.0000000000', error '-0.0000000000' |
4 |
Correct |
1 ms |
348 KB |
found '1.0000000000', expected '1.0000000000', error '0.0000000000' |
5 |
Correct |
0 ms |
348 KB |
found '124002.0000000000', expected '124002.0000000000', error '0.0000000000' |
6 |
Correct |
2 ms |
604 KB |
found '772893586.0000000000', expected '772893586.0000000000', error '0.0000000000' |
7 |
Correct |
2 ms |
604 KB |
found '1100977812.5000000000', expected '1100977812.5000000000', error '0.0000000000' |
8 |
Correct |
2 ms |
580 KB |
found '1249950000.5000000000', expected '1249950000.5000000000', error '0.0000000000' |
9 |
Correct |
2 ms |
604 KB |
found '1249975000.0000000000', expected '1249975000.0000000000', error '0.0000000000' |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
348 KB |
1st numbers differ - expected: '1.0000000000', found: '3.0000000000', error = '2.0000000000' |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
348 KB |
1st numbers differ - expected: '1.0000000000', found: '3.0000000000', error = '2.0000000000' |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
found '100800.5000000000', expected '100800.5000000000', error '0.0000000000' |
2 |
Correct |
1 ms |
348 KB |
found '0.0000000000', expected '0.0000000000', error '-0.0000000000' |
3 |
Correct |
0 ms |
348 KB |
found '0.0000000000', expected '0.0000000000', error '-0.0000000000' |
4 |
Correct |
1 ms |
348 KB |
found '1.0000000000', expected '1.0000000000', error '0.0000000000' |
5 |
Correct |
0 ms |
348 KB |
found '124002.0000000000', expected '124002.0000000000', error '0.0000000000' |
6 |
Correct |
2 ms |
604 KB |
found '772893586.0000000000', expected '772893586.0000000000', error '0.0000000000' |
7 |
Correct |
2 ms |
604 KB |
found '1100977812.5000000000', expected '1100977812.5000000000', error '0.0000000000' |
8 |
Correct |
2 ms |
580 KB |
found '1249950000.5000000000', expected '1249950000.5000000000', error '0.0000000000' |
9 |
Correct |
2 ms |
604 KB |
found '1249975000.0000000000', expected '1249975000.0000000000', error '0.0000000000' |
10 |
Incorrect |
0 ms |
348 KB |
1st numbers differ - expected: '1.0000000000', found: '3.0000000000', error = '2.0000000000' |
11 |
Halted |
0 ms |
0 KB |
- |