#include<bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define ind(n) scanf("%d", &n)
#define ind2(n, m) scanf("%d%d", &n, &m)
#define ind3(n, m, k) scanf("%d%d%d", &n, &m, &k)
#define inlld(n) scanf("%lld", &n)
#define inlld2(n, m) scanf("%lld%lld", &n, &m)
#define inlld3(n, m, k) scanf("%lld%lld%lld", &n, &m, &k)
using namespace std;
const int N=105;
const int MOD=1e9+7;
typedef long long ll;
typedef long double ld;
ll n, m, digs[22], dp[22][12][12][2];
ll solve(ll dignum, ll last, ll last2, ll isless)
{
if(dignum<0)
return 0;
if(dignum==0)
return 1;
if(dp[dignum][last][last2][isless]!=-1)
return dp[dignum][last][last2][isless];
if(!isless)
{
ll ret=0;
if(digs[dignum]!=last2 && digs[dignum]!=last)
ret+=solve(dignum-1, digs[dignum], last, 0);
for(ll a=digs[dignum]-1; a>=0; a--)
if(a!=last2 && a!=last)
ret+=solve(dignum-1, a, last, 1);
return dp[dignum][last][last2][isless]=ret;
}
ll ret=0;
for(ll a=9; a>=0; a--)
if(a!=last2 && a!=last)
ret+=solve(dignum-1, a, last, 1);
// printf("%lld %lld %lld %lld %lld\n", dignum, last, last2, isless, ret);
return dp[dignum][last][last2][isless]=ret;
}
ll double_solve(ll here)
{
ll x=here, a=1;
for(; x>0; a++)
{
digs[a]=x%10;
x/=10;
}
a--;
// for(ll b=1; b<=a; b++)
// printf("%lld ", digs[b]);
// printf("\n");
memset(dp, -1, sizeof(dp));
ll maxi=0;
for(ll b=digs[a]-1; b>0; b--)
maxi+=solve(a-1, b, 10, 1);
maxi+=solve(a-1, digs[a], 10, 0);
for(ll b=a-1; b>0; b--)
for(ll c=9; c>0; c--)
maxi+=solve(b-1, c, 10, 1);
return maxi;
}
int main()
{
inlld2(n, m);
ll maxi=double_solve(n-1);
ll mini=double_solve(m);
// printf("%lld %lld\n", maxi, mini);
printf("%lld\n", mini-maxi);
return 0;
}
Compilation message
numbers.cpp: In function 'int main()':
numbers.cpp:9:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
#define inlld2(n, m) scanf("%lld%lld", &n, &m)
~~~~~^~~~~~~~~~~~~~~~~~~~
numbers.cpp:73:5: note: in expansion of macro 'inlld2'
inlld2(n, m);
^~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
440 KB |
Output is correct |
| 4 |
Incorrect |
2 ms |
528 KB |
Output isn't correct |
| 5 |
Correct |
2 ms |
528 KB |
Output is correct |
| 6 |
Correct |
2 ms |
700 KB |
Output is correct |
| 7 |
Correct |
4 ms |
700 KB |
Output is correct |
| 8 |
Correct |
2 ms |
700 KB |
Output is correct |
| 9 |
Correct |
2 ms |
700 KB |
Output is correct |
| 10 |
Correct |
2 ms |
704 KB |
Output is correct |
| 11 |
Correct |
2 ms |
704 KB |
Output is correct |
| 12 |
Correct |
2 ms |
704 KB |
Output is correct |
| 13 |
Correct |
2 ms |
704 KB |
Output is correct |
| 14 |
Incorrect |
3 ms |
704 KB |
Output isn't correct |
| 15 |
Correct |
2 ms |
704 KB |
Output is correct |
| 16 |
Correct |
2 ms |
704 KB |
Output is correct |
| 17 |
Correct |
2 ms |
704 KB |
Output is correct |
| 18 |
Incorrect |
2 ms |
704 KB |
Output isn't correct |
| 19 |
Correct |
2 ms |
704 KB |
Output is correct |
| 20 |
Correct |
2 ms |
704 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
704 KB |
Output is correct |
| 2 |
Correct |
2 ms |
704 KB |
Output is correct |
| 3 |
Correct |
2 ms |
704 KB |
Output is correct |
| 4 |
Correct |
2 ms |
704 KB |
Output is correct |
| 5 |
Correct |
2 ms |
704 KB |
Output is correct |
| 6 |
Correct |
2 ms |
704 KB |
Output is correct |
| 7 |
Correct |
3 ms |
704 KB |
Output is correct |
| 8 |
Correct |
2 ms |
704 KB |
Output is correct |
| 9 |
Correct |
2 ms |
728 KB |
Output is correct |
| 10 |
Correct |
2 ms |
728 KB |
Output is correct |
| 11 |
Correct |
2 ms |
728 KB |
Output is correct |
| 12 |
Correct |
2 ms |
728 KB |
Output is correct |
| 13 |
Correct |
2 ms |
728 KB |
Output is correct |
| 14 |
Correct |
2 ms |
728 KB |
Output is correct |
| 15 |
Correct |
2 ms |
728 KB |
Output is correct |
| 16 |
Correct |
2 ms |
728 KB |
Output is correct |
| 17 |
Correct |
2 ms |
728 KB |
Output is correct |
| 18 |
Correct |
2 ms |
728 KB |
Output is correct |
| 19 |
Correct |
2 ms |
728 KB |
Output is correct |
| 20 |
Correct |
2 ms |
728 KB |
Output is correct |
| 21 |
Correct |
2 ms |
728 KB |
Output is correct |
| 22 |
Correct |
3 ms |
728 KB |
Output is correct |
| 23 |
Correct |
2 ms |
728 KB |
Output is correct |
| 24 |
Correct |
2 ms |
728 KB |
Output is correct |
| 25 |
Correct |
3 ms |
728 KB |
Output is correct |
| 26 |
Correct |
2 ms |
728 KB |
Output is correct |
| 27 |
Correct |
2 ms |
728 KB |
Output is correct |
| 28 |
Correct |
2 ms |
728 KB |
Output is correct |
| 29 |
Correct |
2 ms |
728 KB |
Output is correct |
| 30 |
Correct |
2 ms |
728 KB |
Output is correct |
| 31 |
Correct |
3 ms |
728 KB |
Output is correct |
| 32 |
Correct |
2 ms |
728 KB |
Output is correct |
| 33 |
Correct |
2 ms |
728 KB |
Output is correct |
| 34 |
Correct |
2 ms |
728 KB |
Output is correct |
| 35 |
Correct |
3 ms |
728 KB |
Output is correct |
| 36 |
Correct |
2 ms |
728 KB |
Output is correct |
| 37 |
Correct |
2 ms |
728 KB |
Output is correct |
| 38 |
Correct |
2 ms |
728 KB |
Output is correct |
| 39 |
Correct |
2 ms |
728 KB |
Output is correct |
| 40 |
Correct |
2 ms |
728 KB |
Output is correct |
| 41 |
Correct |
2 ms |
728 KB |
Output is correct |
| 42 |
Correct |
2 ms |
728 KB |
Output is correct |
| 43 |
Correct |
2 ms |
728 KB |
Output is correct |
| 44 |
Correct |
2 ms |
728 KB |
Output is correct |
| 45 |
Correct |
2 ms |
728 KB |
Output is correct |
