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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
#643106#6522. Digit ModeCryingAC ✓325ms3812kbC++142.2kb2024-10-15 18:54:182024-10-15 18:54:20

Judging History

你现在查看的是最新测评结果

  • [2024-10-15 18:54:20]
  • 评测
  • 测评结果:AC
  • 用时:325ms
  • 内存:3812kb
  • [2024-10-15 18:54:18]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 60,M = 10,mod = 1e9+7;
int addv(int x,int y){return (x+y>=mod)?(x+y-mod):(x+y);}
int subv(int x,int y){return (x>=y)?(x-y):(x-y+mod);}
void add(int& x,int y){x = addv(x,y);}
void sub(int& x,int y){x = subv(x,y);}
int qpow(int a,int n){
    int res = 1; a%=mod;
    while(n){
        if(n&1)res = 1ll*res*a%mod;
        n>>=1; a = 1ll*a*a%mod;
    }
    return res;
}
int qinv(int a){return qpow(a,mod-2);}
//
int T,n,buc[M],lim[M],ans;
string s; int a[N];

int fac[N],rfac[N];

int f[N],g[N];

int calc(int N,int x,int c){
    int flag = 1;
    for(int y=0;y<M;y++){
        lim[y] = c-buc[y]-(y>x);
        flag &= lim[y] >= 0;
    }
    if(!flag)return 0;
    memset(f,0,sizeof f); 
    f[c-buc[x]] = rfac[c-buc[x]];
    for(int y=0;y<M;y++)if(x != y){
        memset(g,0,sizeof g);
        for(int a=0;a<=N;a++)if(f[a]){
            for(int b=0;a+b<=N && b<=lim[y];b++){
                add(g[a+b],1ll*f[a]*rfac[b]%mod);
            }
        }
        memcpy(f,g,sizeof f);
    }
    return 1ll*fac[N]*f[N]%mod;
}

void solve(){
    cin>>s; n=s.length(); s=" "+s; ans = 0; for(int i=1;i<=n;i++)a[i] = s[i]-'0';
    memset(buc,0,sizeof buc);  
    
    for(int i=1;i<=n;i++)buc[a[i]]++;
    for(int i=1;i<M;i++)if(buc[ans] <= buc[i])ans = i;
    
    for(int i=1;i<=n;i++){
        int s = i==1;
        for(int j=s;j<a[i];j++){
            memset(buc,0,sizeof buc);
            for(int k=1;k<i;k++)buc[a[k]]++; buc[j]++;
            for(int x=1;x<M;x++)for(int k=buc[x];k<=n;k++){ 
                int w = calc(n-i,x,k);
                add(ans,1ll*w*x%mod);
            }
        }
    }
    for(int len=1;len<n;len++){
        for(int j=1;j<M;j++){
            memset(buc,0,sizeof buc);
            buc[j] = 1;
            for(int x=1;x<M;x++)for(int k=buc[x];k<=len;k++){
                int w = calc(len-1,x,k);
                add(ans,1ll*w*x%mod);
            }
        }
    }
    cout<<ans<<"\n";
}

int main(){
    fac[0] = 1; for(int i=1;i<=50;i++)fac[i] = 1ll*fac[i-1]*i%mod;
    for(int i=0;i<=50;i++)rfac[i] = qinv(fac[i]);
 
    cin>>T;
    while(T--)solve();

    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3472kb

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: 3600kb

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: 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: 2ms
memory: 3564kb

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: 3ms
memory: 3580kb

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: 3ms
memory: 3808kb

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: 5ms
memory: 3512kb

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: 3608kb

input:

3
5014252832385738
8762796162648653
919997886706385

output:

892033338
297722019
462512414

result:

ok 3 number(s): "892033338 297722019 462512414"

Test #9:

score: 0
Accepted
time: 44ms
memory: 3812kb

input:

2
775701797726112292362823101
75927988177061355614

output:

371275551
566830847

result:

ok 2 number(s): "371275551 566830847"

Test #10:

score: 0
Accepted
time: 279ms
memory: 3764kb

input:

1
65760982925996012426370962570581226245366145016666

output:

661063035

result:

ok 1 number(s): "661063035"

Test #11:

score: 0
Accepted
time: 282ms
memory: 3468kb

input:

1
62597468169905757754175023836706426691470692832490

output:

9983261

result:

ok 1 number(s): "9983261"

Test #12:

score: 0
Accepted
time: 288ms
memory: 3600kb

input:

1
78912847369504885593964702297317051208901751786824

output:

817123221

result:

ok 1 number(s): "817123221"

Test #13:

score: 0
Accepted
time: 314ms
memory: 3584kb

input:

1
99999999999999999999999999999999999999999999999999

output:

25251932

result:

ok 1 number(s): "25251932"

Test #14:

score: 0
Accepted
time: 213ms
memory: 3600kb

input:

1
999999999999999999999999999999999999999999999

output:

439421821

result:

ok 1 number(s): "439421821"

Test #15:

score: 0
Accepted
time: 139ms
memory: 3812kb

input:

1
9999999999999999999999999999999999999999

output:

387537647

result:

ok 1 number(s): "387537647"

Test #16:

score: 0
Accepted
time: 314ms
memory: 3512kb

input:

1
99999999999999999999999998889999898988888889998888

output:

909431898

result:

ok 1 number(s): "909431898"

Test #17:

score: 0
Accepted
time: 325ms
memory: 3800kb

input:

1
99999999999999999999999998989899988889989889999888

output:

289727470

result:

ok 1 number(s): "289727470"

Test #18:

score: 0
Accepted
time: 313ms
memory: 3512kb

input:

1
99999999999999999999999998998988898888898889898999

output:

962896416

result:

ok 1 number(s): "962896416"

Test #19:

score: 0
Accepted
time: 140ms
memory: 3580kb

input:

1
9999999999999999999989988898888989888899

output:

995903330

result:

ok 1 number(s): "995903330"

Test #20:

score: 0
Accepted
time: 139ms
memory: 3580kb

input:

1
9999999999999999999989999889889998998898

output:

385460258

result:

ok 1 number(s): "385460258"

Test #21:

score: 0
Accepted
time: 313ms
memory: 3512kb

input:

1
99999999999999999999999999999999999999999999999999

output:

25251932

result:

ok 1 number(s): "25251932"