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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#236103#7177. Many Many Cyclesfzj2007#WA 1ms3812kbC++171.4kb2023-11-03 16:26:262023-11-03 16:26:26

Judging History

你现在查看的是最新测评结果

  • [2023-11-03 16:26:26]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3812kb
  • [2023-11-03 16:26:26]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
template<typename T>inline void read(T &x){
    x=0;
    char ch=getchar();
    bool flag=0;
    while(ch>'9'||ch<'0') flag=flag||ch=='-',ch=getchar();
    while(ch>='0'&&ch<='9') x=x*10+ch-'0',ch=getchar();
    x=flag?-x:x;
}
template<typename T,typename ...Args>inline void read(T &x,Args &...args){
    read(x),read(args...);
}
template<typename T>inline void prt(T x){
    if(x>9) prt(x/10);
    putchar(x%10+'0');
}
template<typename T>inline void put(T x){
    if(x<0) putchar('-'),x=-x;
    prt(x);
}
template<typename T>inline void put(char ch,T x){
    put(x),putchar(ch);
}
template<typename T,typename ...Args>inline void put(char ch,T x,Args ...args){
    put(ch,x),put(ch,args...);
}
#define N 20005
#define ll long long
int n,m,dep[N];
struct edge{
	int v,nxt,w;
}e[N<<1];
int head[N],cnt;
inline void add(int u,int v,int w){
	e[++cnt]=(edge){v,head[u],w},head[u]=cnt;
} 
ll dis[N],g;
bool vis[N];
inline ll gcd(ll x,ll y){
	return !y?x:gcd(y,x%y);
}
inline void dfs(int x,int fa){
	vis[x]=1,dep[x]=dep[fa]+1;
	for(int i=head[x];i;i=e[i].nxt){
		int v=e[i].v;
		if(v==fa) continue;
		if(!vis[v]) dis[v]=dis[x]+e[i].w,dfs(v,x);
		else if(dep[x]>dep[v]) g=gcd(g,dis[x]-dis[v]+e[i].w);
	} 
}
int main(){
	read(n,m);
	for(int i=1,u,v,w;i<=m;i++)
		read(u,v,w),add(u,v,w),add(v,u,w);
	dfs(1,0);
	put('\n',g);
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3704kb

input:

4 4
1 2 1
2 3 1
3 4 1
4 1 1

output:

4

result:

ok answer is '4'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

4 5
1 2 1
1 3 2
1 4 1
2 3 1
3 4 1

output:

4

result:

ok answer is '4'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

20 50
1 2 8
1 3 1
3 4 5
3 5 9
3 6 5
6 7 6
7 8 8
2 9 2
8 10 3
8 11 7
8 12 5
3 13 4
7 14 3
6 15 7
9 16 6
8 17 7
16 18 9
16 19 3
18 20 10
11 3 2
17 1 1
16 2 2
15 1 1
10 3 2
9 1 2
19 2 1
6 1 2
7 3 1
17 3 2
15 3 2
8 6 2
5 1 2
8 1 2
12 1 1
12 7 1
4 1 2
18 2 1
11 7 1
14 1 1
18 1 1
18 9 1
10 6 1
14 3 2
20 2...

output:

2

result:

ok answer is '2'

Test #4:

score: 0
Accepted
time: 0ms
memory: 3564kb

input:

20 50
1 2 18468
1 3 26501
3 4 15725
3 5 29359
3 6 24465
6 7 28146
7 8 16828
2 9 492
8 10 11943
8 11 5437
8 12 14605
3 13 154
7 14 12383
6 15 18717
9 16 19896
8 17 21727
16 18 11539
16 19 19913
18 20 26300
11 3 2
17 1 1
16 2 2
15 1 1
10 3 2
9 1 2
19 2 1
6 1 2
7 3 1
17 3 2
15 3 2
8 6 2
5 1 2
8 1 2
12 ...

output:

1

result:

ok answer is '1'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

100 150
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
11...

output:

3

result:

ok answer is '3'

Test #6:

score: 0
Accepted
time: 0ms
memory: 3716kb

input:

100 130
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
11...

output:

7

result:

ok answer is '7'

Test #7:

score: 0
Accepted
time: 0ms
memory: 3564kb

input:

100 200
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
11...

output:

4

result:

ok answer is '4'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

100 190
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
11...

output:

2

result:

ok answer is '2'

Test #9:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

1000 1500
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

3

result:

ok answer is '3'

Test #10:

score: 0
Accepted
time: 0ms
memory: 3756kb

input:

1000 1500
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

1

result:

ok answer is '1'

Test #11:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

1000 1600
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

1

result:

ok answer is '1'

Test #12:

score: 0
Accepted
time: 0ms
memory: 3640kb

input:

100 190
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
11...

output:

4

result:

ok answer is '4'

Test #13:

score: 0
Accepted
time: 1ms
memory: 3600kb

input:

1000 3000
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

2

result:

ok answer is '2'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3560kb

input:

1000 1400
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

1

result:

ok answer is '1'

Test #15:

score: 0
Accepted
time: 0ms
memory: 3696kb

input:

1000 1500
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

2

result:

ok answer is '2'

Test #16:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

1000 1500
1 2 184676335
1 3 191705725
1 4 293606963
1 5 57078146
2 6 168279962
6 7 29961943
5 8 54392392
5 9 39020154
5 10 123837422
7 11 197199896
3 12 217274772
7 13 18709913
6 14 263007036
11 15 287053812
3 16 303347674
9 17 151417712
17 18 68705548
15 19 326652758
12 20 128598724
2 21 275290779
...

output:

8

result:

ok answer is '8'

Test #17:

score: 0
Accepted
time: 0ms
memory: 3800kb

input:

2000 2500
1 2 22794613
1 3 23670271
1 4 36254735
1 5 7068116
2 6 20774480
6 7 3707773
5 8 6740416
5 9 4815222
5 10 15296810
7 11 24351908
3 12 26824656
7 13 2326259
6 14 32470002
11 15 35443314
3 16 37448596
9 17 18691706
17 18 8500660
15 19 40337666
12 20 15876730
2 21 33971565
11 22 3767381
17 23 ...

output:

12

result:

ok answer is '12'

Test #18:

score: 0
Accepted
time: 1ms
memory: 3788kb

input:

2000 2500
1 2 22794613
1 3 23670271
1 4 36254735
1 5 7068116
2 6 20774480
6 7 3707773
5 8 6740416
5 9 4815222
5 10 15296810
7 11 24351908
3 12 26824656
7 13 2326259
6 14 32470002
11 15 35443314
3 16 37448596
9 17 18691706
17 18 8500660
15 19 40337666
12 20 15876730
2 21 33971565
11 22 3767381
17 23 ...

output:

2

result:

ok answer is '2'

Test #19:

score: 0
Accepted
time: 1ms
memory: 3792kb

input:

2000 2500
1 2 22794613
1 3 23670271
1 4 36254735
1 5 7068116
2 6 20774480
6 7 3707773
5 8 6740416
5 9 4815222
5 10 15296810
7 11 24351908
3 12 26824656
7 13 2326259
6 14 32470002
11 15 35443314
3 16 37448596
9 17 18691706
17 18 8500660
15 19 40337666
12 20 15876730
2 21 33971565
11 22 3767381
17 23 ...

output:

13

result:

ok answer is '13'

Test #20:

score: 0
Accepted
time: 1ms
memory: 3800kb

input:

2000 2500
1 2 22794613
1 3 23670271
1 4 36254735
1 5 7068116
2 6 20774480
6 7 3707773
5 8 6740416
5 9 4815222
5 10 15296810
7 11 24351908
3 12 26824656
7 13 2326259
6 14 32470002
11 15 35443314
3 16 37448596
9 17 18691706
17 18 8500660
15 19 40337666
12 20 15876730
2 21 33971565
11 22 3767381
17 23 ...

output:

1

result:

ok answer is '1'

Test #21:

score: 0
Accepted
time: 1ms
memory: 3812kb

input:

2000 3000
1 2 22794613
1 3 23670271
1 4 36254735
1 5 7068116
2 6 20774480
6 7 3707773
5 8 6740416
5 9 4815222
5 10 15296810
7 11 24351908
3 12 26824656
7 13 2326259
6 14 32470002
11 15 35443314
3 16 37448596
9 17 18691706
17 18 8500660
15 19 40337666
12 20 15876730
2 21 33971565
11 22 3767381
17 23 ...

output:

3

result:

ok answer is '3'

Test #22:

score: -100
Wrong Answer
time: 1ms
memory: 3664kb

input:

2000 3000
1 2 22794613
1 3 23670271
1 4 36254735
1 5 7068116
2 6 20774480
6 7 3707773
5 8 6740416
5 9 4815222
5 10 15296810
7 11 24351908
3 12 26824656
7 13 2326259
6 14 32470002
11 15 35443314
3 16 37448596
9 17 18691706
17 18 8500660
15 19 40337666
12 20 15876730
2 21 33971565
11 22 3767381
17 23 ...

output:

3

result:

wrong answer expected '1', found '3'