#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> ii;
ll dp[20][11][11][2][2];
char s[20];
int len;
ll f(int pos, int a, int b, bool small, bool start) {
if(pos == len) return 1;
ll &ret = dp[pos][a][b][small][start];
if(~ret) return ret;
ret = 0;
int lim = small ? 9 : s[pos] - '0';
for(int i = 0; i <= lim; i++) {
if(i == a || i == b) continue;
if(!i && start) {
ret += f(pos + 1, 10, 10, small | (i < lim), 1);
} else {
ret += f(pos + 1, b, i, small | (i < lim), 0);
}
} return ret;
}
ll solve(int n) {
sprintf(s, "%lld", n);
len = strlen(s);
memset(dp, -1, sizeof dp);
return f(0, 10, 10, 0, 1);
}
int main(int argc, char const *argv[]) {
ll a, b;
scanf("%lld %lld", &a, &b);
ll ans = solve(b);
if(a) ans -= solve(a - 1);
printf("%lld\n", ans);
}
Compilation message
numbers.cpp: In function 'll solve(int)':
numbers.cpp:29:25: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'int' [-Wformat=]
sprintf(s, "%lld", n);
^
numbers.cpp: In function 'int main(int, const char**)':
numbers.cpp:37:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%lld %lld", &a, &b);
~~~~~^~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
3 ms |
376 KB |
Output is correct |
| 3 |
Incorrect |
3 ms |
544 KB |
Output isn't correct |
| 4 |
Correct |
2 ms |
544 KB |
Output is correct |
| 5 |
Correct |
3 ms |
544 KB |
Output is correct |
| 6 |
Correct |
2 ms |
544 KB |
Output is correct |
| 7 |
Correct |
3 ms |
672 KB |
Output is correct |
| 8 |
Correct |
3 ms |
672 KB |
Output is correct |
| 9 |
Correct |
2 ms |
672 KB |
Output is correct |
| 10 |
Correct |
3 ms |
672 KB |
Output is correct |
| 11 |
Correct |
2 ms |
672 KB |
Output is correct |
| 12 |
Correct |
2 ms |
672 KB |
Output is correct |
| 13 |
Correct |
3 ms |
672 KB |
Output is correct |
| 14 |
Correct |
4 ms |
672 KB |
Output is correct |
| 15 |
Correct |
3 ms |
672 KB |
Output is correct |
| 16 |
Correct |
3 ms |
672 KB |
Output is correct |
| 17 |
Correct |
2 ms |
672 KB |
Output is correct |
| 18 |
Correct |
3 ms |
672 KB |
Output is correct |
| 19 |
Incorrect |
2 ms |
672 KB |
Output isn't correct |
| 20 |
Correct |
3 ms |
672 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
672 KB |
Output is correct |
| 2 |
Incorrect |
4 ms |
672 KB |
Output isn't correct |
| 3 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 4 |
Incorrect |
2 ms |
748 KB |
Output isn't correct |
| 5 |
Correct |
2 ms |
748 KB |
Output is correct |
| 6 |
Correct |
2 ms |
748 KB |
Output is correct |
| 7 |
Correct |
2 ms |
748 KB |
Output is correct |
| 8 |
Correct |
2 ms |
748 KB |
Output is correct |
| 9 |
Correct |
3 ms |
748 KB |
Output is correct |
| 10 |
Correct |
3 ms |
748 KB |
Output is correct |
| 11 |
Correct |
3 ms |
748 KB |
Output is correct |
| 12 |
Correct |
4 ms |
748 KB |
Output is correct |
| 13 |
Correct |
3 ms |
748 KB |
Output is correct |
| 14 |
Correct |
4 ms |
748 KB |
Output is correct |
| 15 |
Correct |
3 ms |
748 KB |
Output is correct |
| 16 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 17 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 18 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 19 |
Incorrect |
0 ms |
748 KB |
Output isn't correct |
| 20 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 21 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 22 |
Incorrect |
3 ms |
748 KB |
Output isn't correct |
| 23 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 24 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 25 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 26 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 27 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 28 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 29 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 30 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 31 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 32 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 33 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 34 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 35 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 36 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 37 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 38 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 39 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 40 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 41 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 42 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 43 |
Incorrect |
5 ms |
760 KB |
Output isn't correct |
| 44 |
Incorrect |
3 ms |
760 KB |
Output isn't correct |
| 45 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
