QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#139474 | #6522. Digit Mode | UrgantTeam# | AC ✓ | 574ms | 3604kb | C++23 | 2.7kb | 2023-08-13 17:17:23 | 2023-08-13 17:17:25 |
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++) {
if (i < 10 && cnt[i] > mx) return 0;
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++) {
if (!dp[i][lst]) continue;
int l = 0, r = min(mx - cnt[i], lst);
if (i == c) l = mx - cnt[i];
else if (i > c) r = min(r, mx - cnt[i] - 1);
for (int now = l; now <= r; now++) {
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;
}
}
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;
}
vector < ll > calc = {0, 45, 570, 5955, 57087, 533943, 5092230, 50327850, 508658835, 141577340, 346748073, 63605721, 691146974, 747499077, 538394750, 265137024, 856024632, 427621971, 516162438, 440472972, 712880662, 791425298, 982743029, 438780983, 383079911, 230599376, 905706960, 197714458, 341824438, 954125005, 98726828, 948875929, 829350644, 341637655, 685873588, 261300047, 133758564, 474399230, 421324133, 863646999, 790696542, 382317337, 207636000, 134734713, 4883420, 322312711, 935473927, 97027071, 538107255, 825526842, 189695037};
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]--;
}*/
ans = (ans + calc[len]) % mod;
}
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;
}
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: 2ms
memory: 3540kb
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: 3604kb
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: 3472kb
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: 2ms
memory: 3540kb
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: 1ms
memory: 3476kb
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: 1ms
memory: 3544kb
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: 4ms
memory: 3480kb
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: 13ms
memory: 3488kb
input:
3 5014252832385738 8762796162648653 919997886706385
output:
892033338 297722019 462512414
result:
ok 3 number(s): "892033338 297722019 462512414"
Test #9:
score: 0
Accepted
time: 51ms
memory: 3484kb
input:
2 775701797726112292362823101 75927988177061355614
output:
371275551 566830847
result:
ok 2 number(s): "371275551 566830847"
Test #10:
score: 0
Accepted
time: 370ms
memory: 3544kb
input:
1 65760982925996012426370962570581226245366145016666
output:
661063035
result:
ok 1 number(s): "661063035"
Test #11:
score: 0
Accepted
time: 391ms
memory: 3604kb
input:
1 62597468169905757754175023836706426691470692832490
output:
9983261
result:
ok 1 number(s): "9983261"
Test #12:
score: 0
Accepted
time: 402ms
memory: 3592kb
input:
1 78912847369504885593964702297317051208901751786824
output:
817123221
result:
ok 1 number(s): "817123221"
Test #13:
score: 0
Accepted
time: 571ms
memory: 3604kb
input:
1 99999999999999999999999999999999999999999999999999
output:
25251932
result:
ok 1 number(s): "25251932"
Test #14:
score: 0
Accepted
time: 379ms
memory: 3488kb
input:
1 999999999999999999999999999999999999999999999
output:
439421821
result:
ok 1 number(s): "439421821"
Test #15:
score: 0
Accepted
time: 245ms
memory: 3492kb
input:
1 9999999999999999999999999999999999999999
output:
387537647
result:
ok 1 number(s): "387537647"
Test #16:
score: 0
Accepted
time: 569ms
memory: 3472kb
input:
1 99999999999999999999999998889999898988888889998888
output:
909431898
result:
ok 1 number(s): "909431898"
Test #17:
score: 0
Accepted
time: 574ms
memory: 3476kb
input:
1 99999999999999999999999998989899988889989889999888
output:
289727470
result:
ok 1 number(s): "289727470"
Test #18:
score: 0
Accepted
time: 573ms
memory: 3596kb
input:
1 99999999999999999999999998998988898888898889898999
output:
962896416
result:
ok 1 number(s): "962896416"
Test #19:
score: 0
Accepted
time: 245ms
memory: 3592kb
input:
1 9999999999999999999989988898888989888899
output:
995903330
result:
ok 1 number(s): "995903330"
Test #20:
score: 0
Accepted
time: 245ms
memory: 3544kb
input:
1 9999999999999999999989999889889998998898
output:
385460258
result:
ok 1 number(s): "385460258"
Test #21:
score: 0
Accepted
time: 574ms
memory: 3488kb
input:
1 99999999999999999999999999999999999999999999999999
output:
25251932
result:
ok 1 number(s): "25251932"