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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#80238#5402. 术树数Crysfly48 732ms22804kbC++173.7kb2023-02-23 10:45:502023-02-23 10:45:53

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-02-23 10:45:53]
  • 评测
  • 测评结果:48
  • 用时:732ms
  • 内存:22804kb
  • [2023-02-23 10:45:50]
  • 提交

answer

// what is matter? never mind.
#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
//#define int long long
using namespace std;
inline int read()
{
	char c=getchar();int x=0;bool f=0;
	for(;!isdigit(c);c=getchar())f^=!(c^45);
	for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
	if(f)x=-x;return x;
}
// modint
int mod;
struct modint{
	int x;
	modint(int o=0){x=o;}
	modint &operator = (int o){return x=o,*this;}
	modint &operator +=(modint o){return x=x+o.x>=mod?x+o.x-mod:x+o.x,*this;}
	modint &operator -=(modint o){return x=x-o.x<0?x-o.x+mod:x-o.x,*this;}
	modint &operator *=(modint o){return x=1ll*x*o.x%mod,*this;}
	modint &operator ^=(int b){
		modint a=*this,c=1;
		for(;b;b>>=1,a*=a)if(b&1)c*=a;
		return x=c.x,*this;
	}
	modint &operator /=(modint o){return *this *=o^=mod-2;}
	friend modint operator +(modint a,modint b){return a+=b;}
	friend modint operator -(modint a,modint b){return a-=b;}
	friend modint operator *(modint a,modint b){return a*=b;}
	friend modint operator /(modint a,modint b){return a/=b;}
	friend modint operator ^(modint a,int b){return a^=b;}
	friend bool operator ==(modint a,int b){return a.x==b;}
	friend bool operator !=(modint a,int b){return a.x!=b;}
	bool operator ! () {return !x;}
	modint operator - () {return x?mod-x:0;}
	bool operator <(const modint&b)const{return x<b.x;}
};
inline modint qpow(modint x,int y){return x^y;}

vector<modint> fac,ifac,iv;
inline void initC(int n)
{
	if(iv.empty())fac=ifac=iv=vector<modint>(2,1);
	int m=iv.size(); ++n;
	if(m>=n)return;
	iv.resize(n),fac.resize(n),ifac.resize(n);
	For(i,m,n-1){
		iv[i]=iv[mod%i]*(mod-mod/i);
		fac[i]=fac[i-1]*i,ifac[i]=ifac[i-1]*iv[i];
	}
}
inline modint C(int n,int m){
	if(m<0||n<m)return 0;
	return initC(n),fac[n]*ifac[m]*ifac[n-m];
}
inline modint sign(int n){return (n&1)?(mod-1):(1);}

#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;

#define maxn 500005
#define inf 0x3f3f3f3f

int n,m,q;

#define poly vector<modint>
poly get(int x){
	poly o(m);
	For(i,0,m-1)o[i]=x%mod,x/=mod;
	return o;
}
int get(poly o){
	int x=0;
	Rep(i,m-1,0)x=x*mod+o[i].x;
	return x;
}
poly operator +(poly a,poly b){
	int n=max(a.size(),b.size());a.resize(n),b.resize(n);
	For(i,0,n-1)a[i]+=b[i];return a;
}
poly operator -(poly a,poly b){
	int n=max(a.size(),b.size());a.resize(n),b.resize(n);
	For(i,0,n-1)a[i]-=b[i];return a;
}
poly operator *(poly a,modint b){
	int n=a.size();
	For(i,0,n-1)a[i]*=b;return a;
}

poly dis[maxn];
poly bs[33];
void ins(poly a){
//	for(auto x:a)cout<<x.x<<" ";puts("ins");
	Rep(i,m-1,0){
		if(!a[i].x)continue;
		if(!bs[i].size()) bs[i]=a;
		while(a[i].x){
			int t=bs[i][i].x/a[i].x;
			bs[i]=bs[i]-a*t;
			swap(a,bs[i]);
		}
	}
}

void exgcd(int a,int b,int&x,int&y){
	if(!b)return x=1,y=0,void();
	exgcd(b,a%b,y,x),y-=a/b*x;
}
int inv(int a){
	int x,y;
	exgcd(a,mod,x,y);
	x=(x%mod+mod)%mod;
	return x;
}

poly ask(poly a){
//	for(auto x:a)cout<<x.x<<" ";puts("ask");
	Rep(i,m-1,0){
		if(bs[i].size()){
			modint x=inv(bs[i][i].x);
			int g=__gcd(bs[i][i].x,mod);
			int r=a[i].x%g;
			modint t=(a[i].x/g)*x;
			a=a-bs[i]*t;
			assert(a[i].x==r); 
		}
	}return a;
}

signed main()
{
	q=read(),mod=read(),m=read();
	dis[n=1].resize(m);
	For(_,1,q){
		int op=read(),x,y,v;
		if(op==1){
			x=read(),y=read();
			poly w=get(y);
			dis[++n]=dis[x]+w;
			ins(w+w);
		}
		if(op==2){
			x=read(),y=read(),v=read();
			poly w=get(v);
			ins(w+w);
			ins(dis[x]+dis[y]+w);
		}
		if(op==3){
			x=read(),y=read();
			cout<<get(ask(dis[x]+dis[y]))<<"\n";
		}
	}
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 0
Wrong Answer

Test #1:

score: 2
Accepted
time: 0ms
memory: 15084kb

input:

30 7 3
1 1 301
1 1 236
1 2 278
3 2 4
3 2 4
2 1 4 265
1 1 242
1 4 278
1 6 337
3 2 3
2 5 7 304
2 5 6 34
1 4 178
3 6 7
3 5 7
3 1 4
1 1 178
3 3 4
3 1 6
3 3 4
2 6 7 131
1 1 213
3 1 3
2 3 10 11
3 4 6
2 5 9 169
1 6 9
2 5 10 29
1 9 111
3 9 11

output:

0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 12 lines

Test #2:

score: 0
Accepted
time: 0ms
memory: 15208kb

input:

30 9 3
1 1 694
1 2 251
1 2 623
2 2 4 109
3 3 4
3 1 2
2 2 4 611
1 4 595
2 2 5 477
2 2 5 363
3 1 3
2 1 5 121
1 2 225
2 1 5 214
2 3 6 706
3 3 4
2 2 3 122
2 2 3 621
3 2 3
3 2 4
2 1 5 630
1 5 598
3 4 5
3 1 3
1 2 665
2 1 2 331
2 1 6 449
1 2 387
3 3 6
3 4 6

output:

0
0
0
0
0
0
0
0
0
0

result:

ok 10 lines

Test #3:

score: 0
Accepted
time: 1ms
memory: 15208kb

input:

30 4 5
1 1 854
1 1 467
1 2 708
2 2 4 529
1 4 115
1 4 444
2 3 4 108
2 2 5 724
2 1 3 375
1 5 827
2 5 6 974
1 3 73
3 2 3
2 2 3 140
3 5 6
2 6 8 787
3 1 5
1 5 971
3 4 6
2 4 5 816
3 7 8
3 2 4
1 6 855
2 5 10 39
2 6 9 280
2 6 10 662
3 7 10
1 6 412
3 4 7
1 6 276

output:

0
256
256
256
0
0
0
0

result:

ok 8 lines

Test #4:

score: 0
Accepted
time: 0ms
memory: 15160kb

input:

30 6 4
1 1 1246
1 1 825
1 3 843
2 1 3 186
2 2 3 228
2 1 3 1187
3 2 3
3 1 4
1 3 942
3 1 2
1 5 779
2 3 4 775
2 1 2 275
2 1 3 309
2 5 6 1175
3 2 6
1 6 1084
3 4 6
1 7 176
3 5 6
2 3 8 431
3 2 6
3 1 4
1 8 725
3 7 9
3 1 4
3 6 7
3 2 4
3 1 6
1 5 972

output:

1
6
7
0
0
0
0
0
0
0
0
0
0

result:

ok 13 lines

Test #5:

score: 0
Accepted
time: 3ms
memory: 15140kb

input:

30 6 4
1 1 1050
1 2 312
1 3 665
2 1 4 49
2 1 3 394
2 3 4 1225
3 1 4
1 1 381
3 1 2
1 3 933
1 3 551
2 2 6 521
3 3 5
2 2 6 1219
3 3 7
1 6 953
1 3 403
2 1 7 624
1 8 981
3 1 2
1 9 1052
2 4 9 971
2 5 8 575
3 1 7
2 6 9 953
2 1 10 347
3 3 11
2 3 9 878
1 6 991
2 6 11 681

output:

1
0
1
1
0
0
0

result:

ok 7 lines

Test #6:

score: 0
Accepted
time: 1ms
memory: 15088kb

input:

30 4 5
1 1 48
1 2 924
1 2 587
3 3 4
2 1 3 63
1 1 600
2 2 5 747
1 5 252
2 2 5 777
2 2 3 119
1 3 914
1 1 708
2 2 3 670
2 3 5 526
3 3 7
1 5 816
1 9 401
1 2 364
2 7 10 16
2 10 11 254
1 6 641
1 10 406
2 6 10 324
1 5 29
1 12 493
2 3 15 125
1 12 95
1 4 370
2 8 16 766
1 11 307

output:

341
0

result:

ok 2 lines

Test #7:

score: 0
Accepted
time: 1ms
memory: 15152kb

input:

30 3 6
1 1 358
1 2 16
1 1 636
1 1 156
1 4 512
3 3 4
3 5 6
3 1 2
2 2 5 271
3 4 6
2 3 5 5
1 2 566
3 3 4
3 4 6
3 2 3
2 4 6 472
2 2 6 119
1 1 260
2 1 8 488
1 7 345
1 8 368
2 6 9 649
1 1 553
2 1 9 416
3 8 9
1 10 630
1 9 156
1 3 14
1 4 407
3 4 10

output:

0
0
0
0
0
0
0
0
0

result:

ok 9 lines

Test #8:

score: -2
Wrong Answer
time: 9ms
memory: 15156kb

input:

3 8 3
1 1 401
1 2 0
3 1 2

output:

183

result:

wrong answer 1st lines differ - expected: '179', found: '183'

Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 11
Accepted

Test #21:

score: 11
Accepted
time: 732ms
memory: 22804kb

input:

198517 3 16
1 1 40710744
1 2 21885097
1 1 23592366
1 4 7387074
1 5 16074177
1 1 41027400
1 4 18082971
1 2 12822448
1 1 2286557
1 1 27896295
1 11 14532760
1 8 2357296
1 11 9190559
1 6 40503152
3 4 11
3 1 7
3 3 7
3 8 14
3 12 15
3 2 3
1 10 34606866
1 13 42718465
1 16 30353561
3 5 11
3 2 6
3 16 18
1 3 2...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

ok 99662 lines

Test #22:

score: 0
Accepted
time: 307ms
memory: 19828kb

input:

198073 8 8
1 1 4007183
1 1 411647
1 1 3301064
1 1 2747675
1 3 11141272
1 3 4308435
1 4 15582931
1 5 11340890
1 2 9172283
1 9 542280
1 10 12209796
1 3 2829956
3 1 3
1 3 724504
3 2 14
3 3 14
3 9 12
3 7 10
1 1 3594204
1 14 13600647
1 15 4589767
3 10 14
1 4 10564184
1 13 1781174
1 19 6067505
1 9 6735060...

output:

262729
2097224
520
4673
2097672
2134081
2101769
2134080
2101832
2130432
584
2129992
2392584
2134024
2101824
2363904
295424
36864
4608
0
295489
299593
1
33353
2359305
2130440
2130497
2363969
4161
294976
37440
2359361
299080
2101248
299592
33344
2392576
2359816
2097160
8
2359880
262657
2101832
2363464...

result:

ok 99445 lines

Test #23:

score: 0
Accepted
time: 187ms
memory: 18244kb

input:

198343 50 4
1 1 4597949
1 1 1140260
1 1 1078946
1 3 4494430
1 4 3030702
1 5 5215333
1 4 5366961
1 2 4836213
1 5 3721812
1 1 486900
1 3 2631122
3 7 11
1 1 384111
3 6 10
3 1 3
1 1 6239546
3 6 10
1 5 4354709
3 11 12
3 6 13
1 9 863486
1 15 5296752
1 12 1997611
3 15 16
1 11 6087993
3 1 13
1 9 4926906
3 1...

output:

2551
125050
125050
125050
125050
125001
1
127501
127550
125050
125000
2500
2550
125000
125001
50
50
51
50
127550
127501
2500
125000
50
127500
2550
125000
50
127500
125051
1
2550
127551
51
127501
1
127551
2500
125000
2551
2551
125000
127501
1
50
51
2551
2550
125001
0
2500
125001
2500
50
127500
125001...

result:

ok 99620 lines

Test #24:

score: 0
Accepted
time: 84ms
memory: 18188kb

input:

199495 2675 2
1 1 6874452
1 1 2927709
1 1 4714827
1 1 341697
1 1 5807384
1 2 6029400
1 6 3410507
1 1 4255734
1 9 7116423
1 3 5647617
3 5 11
1 5 2479935
3 9 10
3 2 6
1 4 6921813
1 12 4608236
1 11 932260
1 11 5347104
3 1 11
3 11 14
1 12 715746
3 8 17
1 14 1418580
1 3 6123273
1 4 6481423
1 1 4166639
1 ...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

ok 100058 lines

Test #25:

score: 0
Accepted
time: 65ms
memory: 18184kb

input:

199531 45237947 1
1 1 15260546
1 1 30197693
1 2 3455446
1 1 29660068
1 5 5406610
1 2 32468080
1 6 33471078
1 7 3670881
1 7 11684247
1 7 8493599
1 1 4296342
3 5 6
1 9 41359920
3 2 11
1 4 37376116
3 2 5
1 9 44209222
3 2 14
1 13 11322652
3 11 13
1 7 3505613
1 14 30321158
1 3 3184527
1 11 14996243
1 19 ...

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

ok 99829 lines

Subtask #4:

score: 19
Accepted

Test #26:

score: 19
Accepted
time: 88ms
memory: 17132kb

input:

198891 26426880 1
1 1 0
2 1 2 0
3 1 2
1 1 0
3 2 3
3 1 2
1 2 0
1 2 0
1 3 0
1 6 0
2 1 6 0
2 3 6 0
3 2 3
1 2 13213440
1 2 13213440
1 4 13213440
3 4 10
1 1 13213440
2 3 4 0
2 3 8 13213440
1 1 0
1 12 0
1 13 0
1 3 0
3 2 11
3 2 12
2 11 14 13213440
1 6 0
2 12 14 0
2 1 2 0
1 10 0
1 12 0
2 3 13 0
3 12 14
3 1 ...

output:

0
0
0
0
13213440
13213440
0
0
0
13213440
0
0
13213440
0
13213440
0
13213440
0
13213440
13213440
13213440
13213440
13213440
0
13213440
13213440
0
13213440
13213440
0
0
0
13213440
0
13213440
0
13213440
0
0
0
13213440
13213440
0
13213440
13213440
13213440
13213440
0
13213440
13213440
13213440
13213440
...

result:

ok 66344 lines

Test #27:

score: 0
Accepted
time: 70ms
memory: 17152kb

input:

199011 22494024 1
1 1 11247012
1 1 11247012
2 1 2 11247012
3 1 3
1 3 11247012
2 1 4 0
1 1 11247012
1 2 11247012
2 4 5 11247012
3 1 2
1 5 0
3 2 5
2 5 6 11247012
2 2 3 0
1 1 11247012
3 4 8
2 1 5 11247012
3 5 7
1 6 11247012
1 4 0
3 1 7
2 1 9 11247012
1 7 11247012
2 3 4 11247012
3 4 5
2 1 9 11247012
3 5...

output:

11247012
11247012
0
11247012
0
11247012
11247012
11247012
0
11247012
0
0
0
11247012
11247012
11247012
11247012
11247012
11247012
11247012
0
11247012
11247012
11247012
11247012
11247012
11247012
0
0
0
11247012
11247012
11247012
0
0
0
0
11247012
0
11247012
11247012
0
11247012
0
0
11247012
0
11247012
1...

result:

ok 66431 lines

Test #28:

score: 0
Accepted
time: 89ms
memory: 17184kb

input:

198242 23269680 1
1 1 11634840
2 1 2 11634840
3 1 2
2 1 2 11634840
1 1 11634840
1 1 0
1 2 0
1 1 0
2 2 6 11634840
2 2 6 11634840
3 4 6
3 5 6
1 6 11634840
2 3 6 11634840
3 2 7
2 2 5 0
2 2 3 0
2 2 3 0
2 3 7 0
2 2 3 0
3 1 3
3 2 5
2 1 3 11634840
3 3 6
3 2 5
3 5 7
2 1 6 0
1 4 0
1 4 11634840
2 7 8 11634840...

output:

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1163484...

result:

ok 66135 lines

Test #29:

score: 0
Accepted
time: 74ms
memory: 17140kb

input:

198177 22462440 1
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3 1 2
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1 7 449...

output:

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result:

ok 66146 lines

Subtask #5:

score: 15
Accepted

Test #30:

score: 15
Accepted
time: 512ms
memory: 22416kb

input:

199458 2 25
1 1 31252443
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1 2 5635412
1 3 33397078
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3 3 8
3 4 8
1 2 6889338
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2 6 8 24407215
1 11 20847453
3 4 13
1 6 16891344
3 4 ...

output:

150016
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2739062
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...

result:

ok 66461 lines

Test #31:

score: 0
Accepted
time: 529ms
memory: 22348kb

input:

198986 2 25
1 1 11331234
1 2 24833898
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3 2 3
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3 1 3
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3 2 4
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3 3 5
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1 9 188...

output:

969698
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969698
12365
1046658
91964...

result:

ok 65927 lines

Test #32:

score: 0
Accepted
time: 528ms
memory: 22344kb

input:

198119 2 25
1 1 1988220
2 1 2 10935842
2 1 2 10935842
3 1 2
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3 3 6
1 2 29561714
2 2 3 21107138
1 1 21122181
1 6 7460982
2 7 9 19503627
1 9 8058976
3 1 8
...

output:

1988220
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7...

result:

ok 65949 lines

Subtask #6:

score: 3
Accepted

Test #33:

score: 3
Accepted
time: 28ms
memory: 15588kb

input:

49958 1023 2
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2 2 3 53148
1 3 876461
2 1 3 968146
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output:

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result:

ok 16607 lines

Test #34:

score: 0
Accepted
time: 510ms
memory: 18232kb

input:

198392 7 9
1 1 23598910
3 1 2
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3 1 2
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output:

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...

result:

ok 65758 lines

Subtask #7:

score: 0
Skipped

Dependency #1:

0%