QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#106833 | #6397. Master of Both III | whatever# | TL | 372ms | 36360kb | C++14 | 1.8kb | 2023-05-19 14:24:06 | 2023-05-19 14:24:08 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define rep(i, a, b) for (int i = a, I = b; i <= I; ++i)
#define per(i, a, b) for (int i = a, I = b; i >= I; --i)
using i64 = long long;
using pii = pair<int, int>;
using piii = pair<pii, int>;
template<typename T> void up(T &x, T y) { if (x < y) x = y; }
template<typename T> void down(T &x, T y) { if (x > y) x = y; }
const int P = 998244353;
void add(int &x, int y) { (x += y) >= P && (x -= P); }
int Add(int x, int y) { return (x += y) >= P ? (x - P) : x; }
void sub(int &x, int y) { (x -= y) < 0 && (x += P); }
int Sub(int x, int y) { return (x -= y) < 0 ? (x + P) : x; }
void mul(int &x, int y) { x = 1ll * x * y % P; }
int Mul(int x, int y) { return 1ll * x * y % P; }
int power(int a, int b, int c = 1) {
for (; b; b >>= 1, mul(a, a))
if (b & 1) mul(c, a);
return c;
}
const int N = 22, S = 1 << N | 5;
int n, w[N];
i64 dp[S];
// void solve() {
// }
void dfs(int cur, int msk, i64 sum) {
down(dp[msk], sum);
rep(i, cur, n - 1) {
int msk1 = msk;
rep(j, 0, n - 1) {
if (msk >> j & 1) {
msk1 |= 1 << ((i + j) % n);
}
}
if (msk1 == msk) continue;
dfs(i, msk1, sum + w[i]);
}
}
int main() {
ios::sync_with_stdio(0), cin.tie(0);
// int t; cin >> t;
// while (t--) solve();
cin >> n;
per(i, n, 1) cin >> w[i];
memset(dp, 0x3f, sizeof dp);
dfs(0, 1, 0);
rep(i, 0, n - 1) {
rep(s, 0, (1 << n) - 1) {
if (s >> i & 1) {
down(dp[s ^ 1 << i], dp[s]);
}
}
}
int ans = 0;
rep(s, 0, (1 << n) - 1) add(ans, Mul(dp[s] % P, s));
cout << ans << "\n";
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 9ms
memory: 36132kb
input:
3 2 1 2
output:
45
result:
ok 1 number(s): "45"
Test #2:
score: 0
Accepted
time: 4ms
memory: 36128kb
input:
4 1919810 999999998 999999997 114114514
output:
152175989
result:
ok 1 number(s): "152175989"
Test #3:
score: 0
Accepted
time: 8ms
memory: 36140kb
input:
3 842160586 705327547 868243944
output:
78597628
result:
ok 1 number(s): "78597628"
Test #4:
score: 0
Accepted
time: 4ms
memory: 36320kb
input:
5 198327434 147392532 760837755 771109105 676721155
output:
751568230
result:
ok 1 number(s): "751568230"
Test #5:
score: 0
Accepted
time: 15ms
memory: 36360kb
input:
10 831766351 33417723 223739726 80131988 348810263 415437931 119999060 799356097 512022962 23197703
output:
308170104
result:
ok 1 number(s): "308170104"
Test #6:
score: 0
Accepted
time: 11ms
memory: 36192kb
input:
12 892965903 35291219 261557729 131390943 457251874 944586973 724767219 190756777 658923976 587806068 793999675 378390067
output:
964920873
result:
ok 1 number(s): "964920873"
Test #7:
score: 0
Accepted
time: 13ms
memory: 36192kb
input:
14 249132751 477356204 594343028 32906794 270726189 883801423 329535378 877124753 100792287 152414432 142520554 196476850 924736849 383197276
output:
796031217
result:
ok 1 number(s): "796031217"
Test #8:
score: 0
Accepted
time: 172ms
memory: 36196kb
input:
20 627365465 726842612 947302944 649244156 293375951 318148820 237155023 981487641 688151803 844901013 430309799 733877736 520864483 720366437 28746495 143052089 306590290 18586578 662663479 375430013
output:
179404754
result:
ok 1 number(s): "179404754"
Test #9:
score: 0
Accepted
time: 372ms
memory: 36356kb
input:
21 805448889 595358753 391340394 525130530 272725205 157594893 261894302 29704333 909085958 127205196 104570238 495437480 458664573 599968678 690908307 220500006 735062204 172834136 241126905 814694254 294923292
output:
260115885
result:
ok 1 number(s): "260115885"
Test #10:
score: -100
Time Limit Exceeded
input:
22 983532313 168907597 985120947 845727304 401817563 702073670 841923182 372888321 835052818 409509378 73797974 256997223 101497367 919762407 912878630 297947923 723342631 32114398 409524923 253958495 441987041 591475412