QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#226121 | #6522. Digit Mode | YouKn0wWho | AC ✓ | 641ms | 3892kb | C++23 | 2.3kb | 2023-10-25 16:17:49 | 2023-10-25 16:17:49 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N = 55, mod = 1e9 + 7;
int dp[11][N], C[N][N];
int yo(int n, vector<int> lim) {
dp[0][0] = 1;
for (int i = 1; i <= 10; i++) {
for (int s = 0; s <= n; s++) {
dp[i][s] = 0;
for (int k = 0; k <= lim[i - 1]; k++) {
if (k <= s) {
dp[i][s] += 1LL * dp[i - 1][s - k] * C[s][k] % mod;
dp[i][s] %= mod;
}
}
}
}
return dp[10][n];
}
int solve(int n, vector<int> f) {
int ans = 0;
for (int mode = 1; mode <= 9; mode++) {
for (int cnt = 0; cnt <= n; cnt++) {
int tot = cnt + f[mode];
vector<int> lim(10, 0);
bool ok = true;
for (int i = 0; i <= 9; i++) {
if (i <= mode) {
if (f[i] > tot) {
ok = false;
}
else {
lim[i] = tot - f[i];
}
}
else {
if (f[i] >= tot) {
ok = false;
}
else {
lim[i] = tot - f[i] - 1;
}
}
}
if (ok) {
int len = n - cnt;
lim[mode] = 0;
if (len >= 0) {
ans += 1LL * mode * yo(len, lim) % mod * C[n][cnt] % mod;
ans %= mod;
}
}
}
}
return ans;
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
for (int i = 0; i < N; i++) {
C[i][0] = 1;
}
for (int i = 1; i < N; i++) {
for (int j = 1; j <= i; j++) {
C[i][j] = (C[i - 1][j] + C[i - 1][j - 1]) % mod;
}
}
int t; cin >> t;
while (t--) {
string s; cin >> s;
int n = s.size();
vector<int> f(10, 0);
int ans = 0;
for (int i = 1; i < n; i++) {
int k = s[i] - '0';
for (int j = 1; j <= 9; j++) {
f[j]++;
ans += solve(n - i - 1, f);
ans %= mod;
f[j]--;
}
}
for (int i = 0; i < n; i++) {
int k = s[i] - '0';
for (int j = i == 0 ? 1 : 0; j < k; j++) {
f[j]++;
ans += solve(n - i - 1, f);
ans %= mod;
f[j]--;
}
f[k]++;
}
int mx = *max_element(f.begin(), f.end());
for (int i = 9; i >= 0; i--) {
if (f[i] == mx) {
ans += i;
ans %= mod;
break;
}
}
cout << ans << '\n';
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 3660kb
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: 1ms
memory: 3856kb
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: 1ms
memory: 3592kb
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: 1ms
memory: 3820kb
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: 2ms
memory: 3652kb
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: 2ms
memory: 3596kb
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: 3ms
memory: 3888kb
input:
7 7934351 8474057 1287369 5845624 7796773 5805755 7349121
output:
42465725 45668947 6716401 30094426 41554096 29861098 38756757
result:
ok 7 numbers
Test #8:
score: 0
Accepted
time: 18ms
memory: 3824kb
input:
3 5014252832385738 8762796162648653 919997886706385
output:
892033338 297722019 462512414
result:
ok 3 number(s): "892033338 297722019 462512414"
Test #9:
score: 0
Accepted
time: 63ms
memory: 3624kb
input:
2 775701797726112292362823101 75927988177061355614
output:
371275551 566830847
result:
ok 2 number(s): "371275551 566830847"
Test #10:
score: 0
Accepted
time: 553ms
memory: 3652kb
input:
1 65760982925996012426370962570581226245366145016666
output:
661063035
result:
ok 1 number(s): "661063035"
Test #11:
score: 0
Accepted
time: 564ms
memory: 3708kb
input:
1 62597468169905757754175023836706426691470692832490
output:
9983261
result:
ok 1 number(s): "9983261"
Test #12:
score: 0
Accepted
time: 576ms
memory: 3860kb
input:
1 78912847369504885593964702297317051208901751786824
output:
817123221
result:
ok 1 number(s): "817123221"
Test #13:
score: 0
Accepted
time: 640ms
memory: 3668kb
input:
1 99999999999999999999999999999999999999999999999999
output:
25251932
result:
ok 1 number(s): "25251932"
Test #14:
score: 0
Accepted
time: 420ms
memory: 3624kb
input:
1 999999999999999999999999999999999999999999999
output:
439421821
result:
ok 1 number(s): "439421821"
Test #15:
score: 0
Accepted
time: 260ms
memory: 3892kb
input:
1 9999999999999999999999999999999999999999
output:
387537647
result:
ok 1 number(s): "387537647"
Test #16:
score: 0
Accepted
time: 639ms
memory: 3644kb
input:
1 99999999999999999999999998889999898988888889998888
output:
909431898
result:
ok 1 number(s): "909431898"
Test #17:
score: 0
Accepted
time: 635ms
memory: 3596kb
input:
1 99999999999999999999999998989899988889989889999888
output:
289727470
result:
ok 1 number(s): "289727470"
Test #18:
score: 0
Accepted
time: 638ms
memory: 3544kb
input:
1 99999999999999999999999998998988898888898889898999
output:
962896416
result:
ok 1 number(s): "962896416"
Test #19:
score: 0
Accepted
time: 271ms
memory: 3604kb
input:
1 9999999999999999999989988898888989888899
output:
995903330
result:
ok 1 number(s): "995903330"
Test #20:
score: 0
Accepted
time: 260ms
memory: 3652kb
input:
1 9999999999999999999989999889889998998898
output:
385460258
result:
ok 1 number(s): "385460258"
Test #21:
score: 0
Accepted
time: 641ms
memory: 3588kb
input:
1 99999999999999999999999999999999999999999999999999
output:
25251932
result:
ok 1 number(s): "25251932"