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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#73235 | #4398. Luxury cruise ship | LiCooer | AC ✓ | 42ms | 81452kb | C++17 | 816b | 2023-01-23 08:38:48 | 2023-01-23 08:38:49 |
Judging History
answer
#include <iostream>
#include <cstring>
#define int long long
using namespace std;
const int N = 10000010;
const int INF = 1e18;
int f[N];
int w[3];
void init()
{
memset(f, 0x3f, sizeof f);
f[0] = 0;
for (int i = 0; i < 3; i++)
for (int j = w[i]; j <= 10000000; j++) // 只要时间复杂度允许,那就都可以拿下。
f[j] = min(f[j], f[j - w[i]] + 1);
}
signed main()
{
cin.tie(nullptr)->sync_with_stdio(false);
w[0] = 7, w[1] = 31, w[2] = 365;
init();
int T;
cin >> T;
while (T--)
{
int x;
cin >> x;
int t = x / 3650000;
int res = t * 10000;
x %= 3650000;
if (f[x] > INF / 2) cout << "-1\n";
else cout << res + f[x] << '\n';
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 42ms
memory: 81452kb
input:
1000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101...
output:
-1 -1 -1 -1 -1 -1 1 -1 -1 -1 -1 -1 -1 2 -1 -1 -1 -1 -1 -1 3 -1 -1 -1 -1 -1 -1 4 -1 -1 1 -1 -1 -1 5 -1 -1 2 -1 -1 -1 6 -1 -1 3 -1 -1 -1 7 -1 -1 4 -1 -1 -1 8 -1 -1 5 -1 -1 2 9 -1 -1 6 -1 -1 3 10 -1 -1 7 -1 -1 4 11 -1 -1 8 -1 -1 5 12 -1 -1 9 -1 -1 6 13 -1 3 10 -1 -1 7 14 -1 4 11 -1 -1 8 15 -1 5 12 -1 -...
result:
ok 1000 lines