QOJ.ac
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 |
|---|---|---|---|---|---|---|---|---|---|
| #360054 | #4992. Enigmatic Enumeration | crsfaa# | WA | 91ms | 4288kb | C++14 | 1.0kb | 2024-03-21 10:49:01 | 2024-03-21 10:49:02 |
Judging History
answer
#include<bits/stdc++.h>
#define Yukinoshita namespace
#define Yukino std
#define int long long
using Yukinoshita Yukino;
int read()
{
int s=0,w=1;
char ch=getchar();
while(ch<'0'||ch>'9') w=ch=='-'?-1:1,ch=getchar();
while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
return s*w;
}
const int mxn=6005;
pair<int,int> e[mxn];
vector<int> a[mxn];
int d[mxn],sum[mxn];
signed main()
{
int n=read(),m=read(),i,x,y,mn=1e9,s;
for(i=1;i<=m;i++)
x=read(),y=read(),e[i]={x,y},
a[x].push_back(y),
a[y].push_back(x);
for(i=1;i<=m;i++)
{
memset(d,-1,n+1<<3);
memset(sum,0,n+1<<3);
x=e[i].first,y=e[i].second;
queue<int> q;
q.push(x);
sum[x]=1;
d[x]=0;
while(q.size())
{
int f=q.front();
q.pop();
for(auto i:a[f])
if((i!=x||f!=y)&&(i!=y||f!=x))
{
if(d[i]==-1)
sum[i]=1,d[i]=d[f]+1,q.push(i);
else if(d[i]==d[f]+1)
sum[i]+=sum[f];
}
}
if(d[y]!=-1)
{
if(d[y]+1==mn) s+=sum[y];
else if(d[y]+1<mn)
mn=d[y]+1,s=sum[y];
}
}
cout<<s/mn;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3776kb
input:
4 4 1 2 2 3 3 4 4 1
output:
1
result:
ok single line: '1'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3772kb
input:
5 10 1 2 1 3 1 4 1 5 2 3 2 4 2 5 3 4 3 5 4 5
output:
10
result:
ok single line: '10'
Test #3:
score: 0
Accepted
time: 0ms
memory: 3660kb
input:
6 6 1 2 2 3 3 1 4 5 5 6 6 4
output:
2
result:
ok single line: '2'
Test #4:
score: 0
Accepted
time: 85ms
memory: 4288kb
input:
110 5995 109 20 100 23 99 65 106 40 105 62 89 67 57 9 83 38 38 20 28 11 39 28 32 20 108 90 96 50 97 51 80 40 64 48 101 27 84 27 43 35 103 79 70 32 29 28 109 2 43 16 110 94 101 71 84 67 23 19 33 17 107 79 90 33 83 64 57 39 105 46 47 1 80 79 93 67 78 53 34 20 105 15 77 66 65 63 102 57 76 59 47 40 95 4...
output:
215820
result:
ok single line: '215820'
Test #5:
score: 0
Accepted
time: 91ms
memory: 4016kb
input:
110 5985 50 38 109 70 110 85 50 23 71 51 52 2 43 32 74 28 98 13 103 94 108 54 41 12 55 12 51 10 44 2 56 35 8 6 27 2 72 19 92 65 64 42 31 20 110 67 74 46 93 57 59 5 63 50 33 31 98 42 75 59 103 87 81 79 99 20 100 84 89 87 87 78 67 56 85 74 14 7 103 16 42 41 29 13 68 26 110 7 91 63 86 78 86 85 44 42 10...
output:
214742
result:
ok single line: '214742'
Test #6:
score: -100
Wrong Answer
time: 91ms
memory: 4060kb
input:
154 5929 68 88 68 153 67 84 64 134 51 120 38 102 68 82 54 105 50 135 2 103 75 140 17 150 40 127 19 152 8 98 70 144 76 134 7 94 12 109 33 152 14 124 7 96 30 140 9 118 71 110 12 121 17 123 3 112 63 96 35 153 43 122 36 82 24 114 21 111 69 88 76 117 41 126 68 151 32 104 39 150 19 133 1 140 14 114 33 145...
output:
8450307
result:
wrong answer 1st lines differ - expected: '8561476', found: '8450307'