QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#708435 | #6522. Digit Mode | hhoppitree | WA | 143ms | 4068kb | C++17 | 2.4kb | 2024-11-03 22:15:07 | 2024-11-03 22:15:08 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 65, P = 1e9 + 7;
int fac[N], iFac[N], f[N], g[N];
int calc(int c1, vector<int> c2, int n) {
if (*min_element(c2.begin(), c2.end()) < 0 || c1 > n) return 0;
if (c1 + accumulate(c2.begin(), c2.end(), 0) < n) return 0;
for (int i = 0; i <= n; ++i) f[i] = (i == c1 ? iFac[i] : 0);
for (auto x : c2) {
for (int i = 0; i <= n; ++i) g[i] = f[i], f[i] = 0;
for (int i = 0; i <= n; ++i) {
for (int j = 0; j <= x && j <= n - i; ++j) {
f[i + j] = (f[i + j] + 1ll * g[i] * iFac[j]) % P;
}
}
}
return 1ll * f[n] * fac[n] % P;
}
long long pre[N];
signed main() {
for (int i = fac[0] = 1; i <= 50; ++i) {
fac[i] = 1ll * fac[i - 1] * i % P;
iFac[i] = (i == 1 ? 1 : 1ll * (P - P / i) * iFac[P % i] % P);
}
for (int i = iFac[0] = 1; i <= 50; ++i) {
iFac[i] = 1ll * iFac[i - 1] * iFac[i] % P;
}
for (int i = 1; i <= 50; ++i) {
for (int j = 1; j <= 9; ++j) {
for (int k = 1; k <= i; ++k) {
vector<int> ts;
for (int l = 0; l < 10; ++l) {
if (l != j) ts.push_back(k - (l > j));
}
pre[i] += j * calc(k, ts, i);
--ts[0], pre[i] -= j * calc(k, ts, i - 1);
}
}
pre[i] += pre[i - 1];
}
int T; scanf("%d", &T);
while (T--) {
string S; cin >> S;
map<char, int> M;
for (auto x : S) ++M[x];
pair<int, int> mx = {0, 0};
for (auto [x, y] : M) mx = max(mx, {y, x - '0'});
int n = S.size();
long long res = mx.second + pre[S.size() - 1];
int ct[10];
for (int i = 0; i < 10; ++i) ct[i] = 0;
for (int i = 0; i <= n - 1; ++i) {
for (int j = !i; j < S[i] - '0'; ++j) {
for (int k = 1; k < 10; ++k) {
for (int l = 0; l <= n - i - 1; ++l) {
vector<int> ts;
for (int p = 0; p < 10; ++p) {
if (p != k) ts.push_back(ct[k] + (j == k) + l - ct[p] - (j == p) - (p > k));
}
res += k * calc(l, ts, n - i - 1);
}
}
}
++ct[S[i] - '0'];
}
printf("%lld\n", (res % P + P) % P);
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 131ms
memory: 4068kb
input:
5 9 99 999 99999 999999
output:
45 615 6570 597600 5689830
result:
ok 5 number(s): "45 615 6570 597600 5689830"
Test #2:
score: 0
Accepted
time: 130ms
memory: 4068kb
input:
34 7 48 8 76 1 97 7 5 7 7 2 89 9 4 84 46 6 73 86 78 5 3 8 9 31 24 78 7 11 45 2 65 88 6
output:
28 236 36 420 1 597 28 15 28 28 3 525 45 10 484 221 21 399 500 435 15 6 36 45 145 104 435 28 47 215 3 341 516 21
result:
ok 34 numbers
Test #3:
score: 0
Accepted
time: 130ms
memory: 3792kb
input:
16 935 888 429 370 499 881 285 162 178 948 205 858 573 249 773 615
output:
6009 5618 2456 2078 2905 5562 1603 887 993 6121 1174 5378 3333 1374 4724 3631
result:
ok 16 numbers
Test #4:
score: 0
Accepted
time: 131ms
memory: 3864kb
input:
12 1242 9985 6469 9310 4191 9497 3166 3495 9711 9698 4137 2257
output:
7292 63531 37910 58047 23987 59479 18076 19675 61184 61086 23672 12913
result:
ok 12 numbers
Test #5:
score: 0
Accepted
time: 131ms
memory: 3792kb
input:
10 61195 72739 10164 79164 57851 12326 29132 55992 67377 13873
output:
337575 408170 63792 450686 316513 70493 157773 305011 374163 77954
result:
ok 10 numbers
Test #6:
score: 0
Accepted
time: 127ms
memory: 4056kb
input:
8 529983 127270 421121 291729 461233 695056 365028 271160
output:
2744573 687141 2160067 1500426 2359204 3705475 1851172 1381981
result:
ok 8 numbers
Test #7:
score: 0
Accepted
time: 132ms
memory: 3768kb
input:
7 7934351 8474057 1287369 5845624 7796773 5805755 7349121
output:
42465725 45668947 6716401 30094426 41554096 29861098 38756757
result:
ok 7 numbers
Test #8:
score: -100
Wrong Answer
time: 143ms
memory: 3856kb
input:
3 5014252832385738 8762796162648653 919997886706385
output:
444734152 719081256 481702888
result:
wrong answer 1st numbers differ - expected: '892033338', found: '444734152'