QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#139467 | #6522. Digit Mode | UrgantTeam# | TL | 229ms | 3596kb | C++23 | 2.3kb | 2023-08-13 17:01:56 | 2023-08-13 17:02:34 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int const maxn = 55;
int mod = 1e9 + 7;
int C[maxn][maxn], cnt[10];
ll dp[maxn][maxn];
ll solve(int n, int c, int mx) {
for (int i = 0; i <= 10; i++) {
for (int j = 0; j < maxn; j++) dp[i][j] = 0;
}
dp[0][n] = 1;
for (int i = 0; i <= 9; i++) {
for (int lst = 0; lst <= n; lst++) {
for (int now = 0; now <= min(mx - cnt[i], lst); now++) {
if (i > c && now == mx - cnt[i]) continue;
if (i == c && now != mx - cnt[i]) continue;
dp[i + 1][lst - now] = (dp[i + 1][lst - now] + dp[i][lst] * C[lst][now]) % mod;
}
}
}
return dp[10][0];
}
int get(int n) {
ll answer = 0;
for (int c = 0; c <= 9; c++) {
for (int cur = cnt[c]; cur <= cnt[c] + n; cur++) {
answer = (answer + (ll)c * solve(n, c, cur)) % mod;
//if (c == 1) cout << answer << endl;
}
}
return answer;
}
main() {
#ifdef HOME
freopen("input.txt", "r", stdin);
#endif // HOME
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t;
cin >> t;
for (int i = 0; i < maxn; i++) C[i][0] = 1;
for (int i = 1; i < maxn; i++) {
for (int j = 1; j <= i; j++) C[i][j] = (C[i - 1][j] + C[i - 1][j - 1]) % mod;
}
while (t--) {
string s;
cin >> s;
int ans = 0;
for (int i = 0; i < 10; i++) cnt[i] = 0;
for (int len = 1; len < s.size(); len++) {
for (int c = 1; c <= 9; c++) {
cnt[c]++;
ans = (ans + get(len - 1)) % mod;
cnt[c]--;
}
}
//cnt[1] = 1;
//cout << "OK" << endl;
//cout << get(1) << endl;
//exit(0);
for (int i = 0; i < s.size(); i++) {
for (int j = 0; j < s[i] - '0'; j++) {
cnt[j]++;
if (i || j) {
ans = (ans + get(s.size() - i - 1)) % mod;
//cout << i << " " << j << " " << ans << endl;
//if (i == 1 && j == 2) exit(0);
}
cnt[j]--;
}
cnt[s[i] - '0']++;
}
ans = (ans + get(0)) % mod;
cout << ans << '\n';
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 3ms
memory: 3488kb
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: 0ms
memory: 3536kb
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: 2ms
memory: 3492kb
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: 3ms
memory: 3596kb
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: 4ms
memory: 3532kb
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: 3540kb
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: 8ms
memory: 3488kb
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: 64ms
memory: 3472kb
input:
3 5014252832385738 8762796162648653 919997886706385
output:
892033338 297722019 462512414
result:
ok 3 number(s): "892033338 297722019 462512414"
Test #9:
score: 0
Accepted
time: 229ms
memory: 3480kb
input:
2 775701797726112292362823101 75927988177061355614
output:
371275551 566830847
result:
ok 2 number(s): "371275551 566830847"
Test #10:
score: -100
Time Limit Exceeded
input:
1 65760982925996012426370962570581226245366145016666