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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#509495#8049. Equal SumsczcML 1ms3956kbC++14975b2024-08-08 15:22:002024-08-08 15:22:01

Judging History

你现在查看的是最新测评结果

  • [2024-08-08 15:22:01]
  • 评测
  • 测评结果:ML
  • 用时:1ms
  • 内存:3956kb
  • [2024-08-08 15:22:00]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int n,m;
const int maxn=501;
const int mod=998244353;
int l1[maxn],r1[maxn],l2[maxn],r2[maxn];
int f[maxn][maxn][maxn<<2];
int dl=500;
inline int MOD(int x){
	return x>=mod?x-mod:x;
}
inline int ask(int i,int j,int l,int r){
	if(l>r) return 0;
	return MOD(f[i][j][r+dl]-(((l-1+dl)<0)?0:f[i][j][l-1+dl])+mod);
}
int main(){
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++) scanf("%d%d",&l1[i],&r1[i]);
	for(int i=1;i<=m;i++) scanf("%d%d",&l2[i],&r2[i]);
	f[0][0][dl]=1;
	for(int i=0;i<=n;i++){
		for(int j=0;j<=m;j++){
			if(i>=1 && j>=1) printf("%d ",f[i][j][500]);
			for(int k=1;k<=1000;k++) f[i][j][k]=MOD(f[i][j][k]+f[i][j][k-1]);
			for(int k=-500;k<=500;k++){
				if(i<n) f[i+1][j][k+dl]=MOD(f[i+1][j][k+dl]+ask(i,j,max(-500,k-r1[i+1]),min(0,k-l1[i+1])));
				if(j<m) f[i][j+1][k+dl]=MOD(f[i][j+1][k+dl]+ask(i,j,max(1,k+l2[j+1]),min(500,k+r2[j+1])));
			}
		}
		if(i>=1) puts("");
	}
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3956kb

input:

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

output:

2 0 0 
3 4 4 

result:

ok 6 numbers

Test #2:

score: -100
Memory Limit Exceeded

input:

500 500
19 458
1 480
7 485
50 461
12 476
15 461
48 466
40 453
46 467
9 458
27 478
26 472
46 459
29 490
6 500
17 487
48 484
28 472
28 459
25 480
4 491
29 481
36 460
2 491
44 499
22 473
20 458
4 483
27 471
2 496
11 461
43 450
2 478
37 466
15 459
42 482
7 451
19 455
2 453
47 475
48 450
1 474
46 471
9 4...

output:

411 79401 9145270 673005095 180581065 984223118 586589234 293043270 404363796 865361724 665487988 118838806 926189944 226338288 521479857 808644951 786041288 340769021 177100 21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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: