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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#768278 | #5143. Quick Sort | frankly6 | WA | 12ms | 5740kb | C++17 | 980b | 2024-11-21 08:23:29 | 2024-11-21 08:23:30 |
Judging History
answer
#include<iostream>
#include<cstdio>
using namespace std;
const int MX=500050;
int T, N, num=0;
int br[MX], ar[MX];
int read()
{
int r=0, f=1; char ch=getchar();
while(ch<'0'||ch>'9') {if(ch=='-') f=-1; ch=getchar();}
while(ch>='0'&&ch<='9') {r=r*10+ch-'0'; ch=getchar();}
return r*f;
}
int part(int a[], int lo, int hi)
{
int pivot=a[(lo+hi)/2];
int i=lo, j=hi;
while(1)
{
while(a[i]<pivot) i++;
while(a[j]>pivot) j--;
if(i>=j) return j;
swap(a[i],a[j]), num++;
}
}
void qsort(int a[], int lo, int hi)
{
if(lo>=0&&hi>=0&&lo<hi)
{
int p=part(a,lo,hi);
qsort(a,lo,p);
qsort(a,p+1,hi);
}
}
int main()
{
// freopen("testdata.in","r",stdin);
T=read();
while(T--)
{
N=read(); num=0;
for(int i=1;i<=N;i++) br[i]=ar[i]=read();
qsort(br,1,N);
cout << num << '\n';
}
return (0-0);
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 5624kb
input:
3 3 3 2 1 5 2 4 5 3 1 10 7 2 4 6 1 9 10 8 5 3
output:
1 4 7
result:
ok 3 number(s): "1 4 7"
Test #2:
score: 0
Accepted
time: 4ms
memory: 5700kb
input:
100000 4 3 4 2 1 5 5 4 1 3 2 4 3 1 4 2 4 4 2 1 3 4 1 3 2 4 4 4 2 3 1 4 3 2 1 4 5 1 2 3 4 5 5 5 2 3 1 4 5 1 3 5 4 2 5 4 3 2 1 5 5 3 4 2 1 5 5 5 4 3 2 1 4 3 4 2 1 5 4 2 5 1 3 5 4 1 5 2 3 4 3 4 1 2 4 2 1 3 4 5 4 3 2 5 1 4 4 2 1 3 5 3 1 5 2 4 4 4 1 2 3 5 1 5 2 4 3 5 4 1 3 5 2 5 4 2 3 5 1 5 1 2 3 4 5 5 4...
output:
3 4 3 2 1 1 1 0 2 2 2 3 2 3 2 3 2 1 3 2 4 3 2 3 2 0 4 2 4 1 3 2 3 2 2 1 3 1 1 2 4 3 2 3 1 1 1 3 3 3 4 4 2 3 3 2 3 3 3 2 1 1 2 3 1 3 1 1 3 4 2 2 4 1 1 3 2 2 2 2 1 3 4 4 3 4 2 2 1 3 2 3 2 3 3 2 1 4 2 3 4 1 2 2 3 2 2 3 2 2 2 2 4 1 2 3 2 2 2 2 3 2 3 4 3 2 3 4 2 4 1 3 2 3 4 3 3 4 1 2 4 3 2 4 2 3 3 1 2 2 ...
result:
ok 100000 numbers
Test #3:
score: -100
Wrong Answer
time: 12ms
memory: 5740kb
input:
50000 10 3 1 2 10 6 8 5 4 7 9 10 8 3 9 2 10 4 5 1 7 6 9 6 8 4 9 5 7 1 3 2 9 6 7 9 3 8 5 2 1 4 10 7 10 1 2 6 5 3 9 4 8 10 1 10 4 3 2 9 7 8 5 6 9 1 5 3 4 9 6 7 2 8 10 4 7 2 8 3 6 9 5 10 1 9 6 4 9 1 8 5 2 3 7 10 5 1 7 8 10 3 9 6 2 4 9 4 8 6 3 9 7 5 2 1 9 9 1 7 6 2 3 8 5 4 10 5 7 2 1 4 3 6 8 9 10 10 9 7...
output:
8 8 8 8 9 5 3 8 8 9 7 8 7 9 8 11 6 8 8 7 7 11 7 6 11 8 3 6 8 6 6 7 10 4 8 6 6 8 5 6 7 6 7 5 5 8 9 5 9 10 6 7 8 9 4 9 6 7 8 8 9 7 5 7 6 6 10 9 8 6 4 8 6 10 4 9 9 6 9 6 7 7 7 9 6 6 9 8 7 9 9 5 6 8 8 8 8 8 6 4 8 8 5 8 8 8 9 8 8 7 8 7 6 10 9 5 7 7 6 5 5 6 8 9 5 6 7 8 6 7 9 6 7 9 7 7 6 8 9 9 7 7 9 7 8 6 ...
result:
wrong answer 11th numbers differ - expected: '9', found: '7'