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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#617035 | #8276. Code Congestion | pengpeng_fudan# | WA | 2ms | 6264kb | C++23 | 2.0kb | 2024-10-06 13:37:37 | 2024-10-06 13:37:37 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int mod = 998244353;
const int N = 210, T = 3e5 + 10;
int n, m;
int a[N], t[N], s[N];
int pw2[N];
int st[N];
int f[T], g[T];
int add(int x, int y) {
return x + y >= mod ? x + y - mod : x + y;
}
int main() {
scanf("%d%d", &n, &m);
pw2[0] = 1;
for (int i = 1; i <= n; ++i) {
pw2[i] = add(pw2[i - 1], pw2[i - 1]);
scanf("%d", &a[i]);
}
for (int i = 1; i <= n; ++i) {
s[i] = add(s[i - 1], a[i]);
}
for (int i = 1; i <= n; ++i) {
scanf("%d", &t[i]);
st[i] = st[i - 1] + t[i];
}
int ans = 0;
if (st[n] <= m) {
ans = 1ll * s[n] * pw2[n] % mod;
printf("%d\n", ans);
return 0;
}
// cerr << 1 << '\n';
// return 0;
f[0] = 1;
for (int i = n; i; --i) {
if (st[i - 1] <= m) {
for (int j = 0; j <= m; ++j) {
if (j + st[i - 1] <= m && j + st[i - 1] + t[i] > m) {
ans = add(ans, 1ll * s[i - 1] * pw2[i - 1] % mod * f[j]);
ans = add(ans, 1ll * pw2[i - 1] * g[j] % mod);
}
}
}
for (int j = m; j >= t[i]; --j) {
f[j] = add(f[j - t[i]], f[j]);
g[j] = add(g[j - t[i]], g[j]);
g[j] = add(g[j], 1ll * f[j - t[i]] * a[i] % mod);
}
}
// cerr << 1 << '\n';
memset(f, 0, sizeof(f));
memset(g, 0, sizeof(g));
f[0] = 1;
for (int i = 1; i <= n; ++i) {
// cerr << i << '\n';
for (int j = 0; j <= m; ++j) {
if (j + t[i] > m) {
ans = add(ans, 1ll * g[j] * pw2[n - i] % mod);
}
}
for (int j = m; j >= t[i]; --j) {
f[j] = add(f[j - t[i]], f[j]);
g[j] = add(g[j - t[i]], g[j]);
g[j] = add(g[j], 1ll * f[j - t[i]] * a[i] % mod);
}
}
// cerr
printf("%d\n", ans);
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 6208kb
input:
3 3 2 3 4 1 2 2
output:
40
result:
ok 1 number(s): "40"
Test #2:
score: 0
Accepted
time: 1ms
memory: 6136kb
input:
13 96 56231 258305 150103 164646 232643 37457 239584 192517 167805 215281 159832 98020 141006 54 1 38 1 4 1 4 11 1 4 8 22 1
output:
745634757
result:
ok 1 number(s): "745634757"
Test #3:
score: 0
Accepted
time: 2ms
memory: 6264kb
input:
14 86 205026 38691 58462 59767 205360 152715 7879 105238 33507 280429 54906 248241 102327 202931 1 49 1 1 5 12 1 5 9 18 1 1 3 32
output:
310231569
result:
ok 1 number(s): "310231569"
Test #4:
score: 0
Accepted
time: 0ms
memory: 6104kb
input:
14 85 82111 267744 229782 32542 260127 152775 1364 293699 23965 242667 264864 219673 189482 12945 1 5 1 1 2 1 38 14 1 3 4 1 21 53
output:
745175834
result:
ok 1 number(s): "745175834"
Test #5:
score: 0
Accepted
time: 1ms
memory: 6124kb
input:
15 94 119505 80865 95965 30047 68261 120903 113180 192738 220899 279742 32609 275645 38640 213859 282516 1 1 8 15 1 3 1 38 6 1 23 57 1 5 79
output:
970187257
result:
ok 1 number(s): "970187257"
Test #6:
score: -100
Wrong Answer
time: 2ms
memory: 6192kb
input:
200 91 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
155038304
result:
wrong answer 1st numbers differ - expected: '602403195', found: '155038304'