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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#480374 | #7304. Coins 2 | _LAP_ | WA | 0ms | 5848kb | C++14 | 1.5kb | 2024-07-16 14:57:19 | 2024-07-16 14:57:19 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 15, maxL = 360360 + 5;
int n;
bool f[2 * N * maxL];
inline void solve() {
vector<int> a(n + 1, 0);
for(int i = 1; i <= n; i ++)
cin >> a[i];
long long L = 1, A = 0;
for(int i = 1; i <= n; i ++) A += 1ll * a[i] * i;
for(int i = 2; i <= n; i ++)
L = L / __gcd(L, (long long)i) * i;
f[0] = 1;
for(int i = 1; i <= n; i ++) if(a[i]) {
static pair<int, int> que[2 * N * maxL];
for(int r = 0; r < i; r ++) {
int hh = 1, tt = 0, cnt = 0;
que[++tt] = {r, f[r]}, cnt += f[r];
for(int k = 1; k * i + r <= 2 * n * L; k ++) {
while(tt - hh + 1 > a[i]) cnt -= que[hh].second, hh ++;
que[++tt] = {k * i + r, f[k * i + r]}, cnt += f[k * i + r];
f[k * i + r] = f[k * i + r] || (cnt > 0);
}
}
}
long long ans = 0;
// [0, n * L)
for(int i = 0; i < n * L; i ++) ans += f[i];
// [n * L, A - n * L]
long long le = n * L, ri = A - n * L, add = 0;
for(int i = n * L; i < (n + 1) * L; i ++) add += f[i];
while(ri >= le && ri % L != L - 1) ans += f[A - ri], ri --;
if(le <= ri) ans += (ri - le + 1) / L * add;
// (A - n * L, A]
for(int i = 0; i < n * L; i ++)
if(A - i > A - n * L && A - i >= n * L) ans += f[i];
cout << ans << '\n';
}
int main() {
ios::sync_with_stdio(false), cin.tie(0);
while(cin >> n) solve();
return 0;
}
Details
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Test #1:
score: 0
Wrong Answer
time: 0ms
memory: 5848kb
input:
3 0 1 2 3 0 2 3
output:
6 17
result:
wrong answer 2nd numbers differ - expected: '12', found: '17'