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 |
---|---|---|---|---|---|---|---|---|---|
#505778 | #8049. Equal Sums | sumi007 | TL | 2ms | 9872kb | C++14 | 1.1kb | 2024-08-05 11:15:22 | 2024-08-05 11:15:22 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 505,mod = 998244353;
int n,m,mx,lx[N],rx[N],ly[N],ry[N],f[2][N][2*N],s[2][N][2*N];
void ADD(int&x,int y){
x = x+y;
if(x>=mod) x = x-mod;
else if(x<0) x = x+mod;
}
int main(){
cin.tie(0),cout.tie(0);
ios::sync_with_stdio(0);
cin >> n >> m;
for(int i=1;i<=n;i++) cin >> lx[i] >> rx[i],mx = max(mx,rx[i]);
for(int i=1;i<=m;i++) cin >> ly[i] >> ry[i],mx = max(mx,ry[i]);
mx = 501;
f[0][0][mx] = s[0][0][mx] = 1;
for(int i=mx;i<=2*mx;i++) s[0][0][i] = 1;
for(int i=0;i<=n;i++){
int o = i&1;
for(int j=0;j<=m;j++){
if(i+j==0) continue;
for(int k=0,l,r;k<=2*mx;k++){
f[o][j][k] = 0;
if(i){
l = min(max(k-rx[i]-1,0),mx-1),r = max(min(mx-1,k-lx[i]),0);
ADD(f[o][j][k],(s[o^1][j][r]-s[o^1][j][l]));
}
if(j){
l = min(max(mx-1,k+ly[j]-1),2*mx),r = max(min(k+ry[j],2*mx),mx-1);
ADD(f[o][j][k],(s[o][j-1][r]-s[o][j-1][l]));
}
s[o][j][k] = f[o][j][k];
}
for(int k=1;k<=2*mx;k++) ADD(s[o][j][k],s[o][j][k-1]);
if(i && j) cout << f[o][j][mx] << " ";
}
cout << "\n";
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 2ms
memory: 9872kb
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
Time 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...