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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#748510#9746. 平方根isAKnoya#AC ✓6ms4340kbC++23402b2024-11-14 20:36:162024-11-14 20:36:17

Judging History

This is the latest submission verdict.

  • [2024-11-14 20:36:17]
  • Judged
  • Verdict: AC
  • Time: 6ms
  • Memory: 4340kb
  • [2024-11-14 20:36:16]
  • Submitted

answer

#include<bits/stdc++.h>
using std::cin,std::cerr,std::cout;
#define all(c) std::begin(c),std::end(c)
signed main(){
	cin.tie(0)->sync_with_stdio(0);
	std::string s;
	cin>>s;
	double ans=0,a=std::sqrt(2)-1;
	for(int i=0;i<ssize(s);++i)if(s[i]=='1'){
		int r=s.find('0',i);
		if(r==s.npos)r=ssize(s);
		ans+=(r-i+1)/2;
		if(!((r-i)&1)){
			ans+=a;
		}
		i=r;
	}
	printf("%.10lf",ans);
}

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: 3896kb

input:

1100110111

output:

4.8284271247

result:

ok found '4.828427125', expected '4.828427125', error '0.000000000'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3980kb

input:

0

output:

0.0000000000

result:

ok found '0.000000000', expected '0.000000000', error '-0.000000000'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3684kb

input:

1

output:

1.0000000000

result:

ok found '1.000000000', expected '1.000000000', error '0.000000000'

Test #4:

score: 0
Accepted
time: 2ms
memory: 4136kb

input:

000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

0.0000000000

result:

ok found '0.000000000', expected '0.000000000', error '-0.000000000'

Test #5:

score: 0
Accepted
time: 2ms
memory: 4116kb

input:

111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111...

output:

500000.4142135624

result:

ok found '500000.414213562', expected '500000.414213562', error '0.000000000'

Test #6:

score: 0
Accepted
time: 6ms
memory: 4164kb

input:

010101111011001000011101100000011110101010000110011110101010111011010011100001100000001011100111110000100101100011101101000100110100111101001100011000101000000101011101000011011001111011101101100010110110001111011001010100110011111101000010010011011101100001101001101010011011100110101001101111010101...

output:

367851.9867876115

result:

ok found '367851.986787612', expected '367851.986787086', error '0.000000000'

Test #7:

score: 0
Accepted
time: 2ms
memory: 4340kb

input:

000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000...

output:

299931.3137084990

result:

ok found '299931.313708499', expected '299931.313708499', error '0.000000000'

Extra Test:

score: 0
Extra Test Passed