QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#775116 | #9436. Some Sum of Subset | CUET_infinite_tsukuyomi# | WA | 1ms | 3860kb | C++20 | 3.5kb | 2024-11-23 14:47:01 | 2024-11-23 14:47:01 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define endl "\n"
#define all(a) a.begin(), a.end()
#define pb push_back
#define eb emplace_back
//#define int long long
// Don't Start typing till you complete the idea.
// Check these things for WA and before submitting
// 1. Did you clear all the global arrays
// 2. Did you checked your <= >= < >
// 3. Did you take the input properly. Did you use break or return while taking input?
// 4. Did you divide by 0.
// 5. Check array , vector , etc size
// 6. in the while loop did you miss something that would cause infinite loop?
// 7. Did you save your dp?
// 8. Are you trying to use something after deleting it?
// 9. Did you read the problem statement wrong?
// 10. Did you check the constrains of the problem properly
// 11. Did you checked for smaller cases like 1 , 0 , etc
// 12. Is it something to with overflow?
// 13. Did you initialized all the variables properly?
// 14. Did you use the formulas correctly?
// STRESS TESTING !!!!!! STRESS TESTING !!!!!
// STRESS Testing Not working?
// Stress test for multiple cases?
// Stress test for big inputs?
// Stress test for really small inputs?
// Even then if it doesn't work -> Did you wrote the wrong Brute force code
// Check these things if you are not generating ideas
// 1. Did you try thinking it in reverse?
// 2. Read the problem statement again
// 3. Check the constraints again
// 4. Try smaller cases in notebook and try to expand
// 5. Think about invariants
// 6. Think simpler ideas maybe?
// 7. Think brute force and try to get something out of it.
// 8. Maybe take a deep breath and take a break for few minutes and drink some water? :3
const int M = 3009;
const int N = 3009;
const int MOD = 998244353;
int dp[M];
int dp2[M];
int val[N];
int ans[N];
int fact[N];
int inv[N];
long long binpow(long long a, long long b) {
long long res = 1;
a %= MOD;
while (b > 0) {
if (b & 1)
res = res * a % MOD;
a = a * a % MOD;
b >>= 1;
}
return res;
}
void prec(){
fact[0] = fact[1] = inv[0] = 1;
for(int i = 2; i <= 3000; i++){
fact[i] = 1LL * fact[i - 1] * i % MOD;
}
inv[3000] = binpow(fact[3000] , MOD - 2);
for(int i = 3000 - 1; i >= 1; i--){
inv[i] = 1LL * inv[i + 1] * (i + 1) % MOD;
}
}
int ncr(int n , int r){
int num = 1LL * fact[n] * inv[r] % MOD;
num = 1LL * num * inv[n - r] % MOD;
return num;
}
void GG()
{
int n , k;
cin >> n >> k;
vector<int> v(n + 1);
for(int i = 1; i <= n; i++) cin >> v[i];
sort(v.begin() + 1 , v.end() , greater<int>());
dp[0] = 1;
for(int i = 1; i <= n; i++){
for(int j = 0; j < k; j++){
dp2[min(k , j + v[i])] = (dp2[min(k , j + v[i])] + dp[j]) % MOD;
}
val[i] = dp2[k];
for(int j = 0; j <= k; j++){
dp2[j] = (dp2[j] + dp[j]) % MOD;
}
for(int j = 0; j <= k; j++){
dp[j] = dp2[j];
dp2[j] = 0;
}
}
for(int i = 1; i <= n; i++){
if(val[i] == 0) continue;
for(int xtr = 0; xtr <= n - i; xtr++){
int ad = 1LL * val[i] * ncr(n - i , xtr);
ans[xtr] = (ans[xtr] + ad) % MOD;
}
}
for(int i = n - 1; i >= 0; i--) ans[i] = (ans[i + 1] + ans[i]) % MOD;
for(int i = 0; i <= n; i++) cout << ans[i] << endl;
}
int32_t main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
prec();
int ttc=1;
// cin>>ttc;
//int cnt=0;
while(ttc--)
{
//cout<<"Case "<<++cnt<<": ";
GG();
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3624kb
input:
4 7 3 1 5 2
output:
6 4 1 0 0
result:
ok 5 tokens
Test #2:
score: 0
Accepted
time: 0ms
memory: 3628kb
input:
1 5 7
output:
1 0
result:
ok 2 tokens
Test #3:
score: 0
Accepted
time: 0ms
memory: 3640kb
input:
9 18 1 9 5 6 2 7 1 4 8
output:
346 309 230 126 46 10 1 0 0 0
result:
ok 10 tokens
Test #4:
score: 0
Accepted
time: 0ms
memory: 3652kb
input:
1 1467 556
output:
0 0
result:
ok 2 tokens
Test #5:
score: 0
Accepted
time: 0ms
memory: 3580kb
input:
1 1753 2514
output:
1 0
result:
ok 2 tokens
Test #6:
score: 0
Accepted
time: 0ms
memory: 3660kb
input:
1 1182 1182
output:
1 0
result:
ok 2 tokens
Test #7:
score: 0
Accepted
time: 0ms
memory: 3596kb
input:
2 1741 955 835
output:
1 0 0
result:
ok 3 tokens
Test #8:
score: 0
Accepted
time: 0ms
memory: 3532kb
input:
2 1481 2004 1570
output:
3 1 0
result:
ok 3 tokens
Test #9:
score: 0
Accepted
time: 0ms
memory: 3648kb
input:
2 1336 1336 1336
output:
3 1 0
result:
ok 3 tokens
Test #10:
score: 0
Accepted
time: 0ms
memory: 3644kb
input:
12 400 2163 2729 1322 2787 2404 1068 1502 746 898 2057 1771 502
output:
4095 4083 4017 3797 3302 2510 1586 794 299 79 13 1 0
result:
ok 13 tokens
Test #11:
score: 0
Accepted
time: 1ms
memory: 3644kb
input:
42 1609 532 722 2650 2889 2260 659 1831 401 2779 1262 2185 1479 515 552 1627 637 1080 580 1589 2154 2650 219 2924 1712 311 2609 1062 968 1357 1310 1942 2419 2465 300 2546 2537 2967 1197 2271 1551 999 2531
output:
780135870 780135476 780133126 780115746 779984839 779086101 773744618 746617208 628409426 182368401 707355349 419830171 342550392 778349940 825220795 979080057 177969332 68371210 748001250 187917550 492152134 287983982 592218358 32133349 711757614 602140473 799225822 952989153 1466429 437088327 3596...
result:
ok 43 tokens
Test #12:
score: 0
Accepted
time: 0ms
memory: 3860kb
input:
93 24 1687 2324 1216 2696 2884 1678 1301 1957 1247 526 2519 2252 2141 960 1505 175 315 388 440 892 837 1942 256 1667 641 1629 2565 2837 1200 2427 418 1072 427 1589 969 886 2991 2249 539 1132 949 2425 2616 2107 1259 582 1979 386 177 1860 2825 316 2004 956 1218 2332 1498 2939 1126 1706 404 1604 505 11...
output:
958346177 958346084 958341806 958212040 955292305 903321022 141075538 649896624 629379357 102857051 471642575 350313411 852223261 984774652 743966819 740155079 222450670 637406264 282036249 875748580 177575581 602719974 451360351 244531346 556337405 139169356 737451056 595307440 402860967 935337558 ...
result:
ok 94 tokens
Test #13:
score: -100
Wrong Answer
time: 1ms
memory: 3580kb
input:
162 1057 695 2739 2637 797 503 1051 2243 2429 160 1900 1798 1584 1488 1377 2764 1324 978 2696 913 2651 817 1522 819 314 882 1536 2785 2193 540 2417 1357 959 2765 408 1693 1305 1643 2565 2677 966 860 2547 936 2123 496 2098 2130 38 378 1395 2725 2657 2107 2096 2039 2421 2548 431 2205 2907 1085 2919 25...
output:
506855190 506851485 506802502 505695003 473851112 562495962 401522721 427957517 562090995 295460322 976270869 280769540 822237093 810885130 791454712 587363056 553471744 322735351 177039268 882353756 82311399 381499748 602338731 66161755 587306778 31104491 574372172 899515556 142045578 954646282 105...
result:
wrong answer 1st words differ - expected: '389411124', found: '506855190'