/* idea is correct, find bug */
#include <stdio.h>
#include <string.h>
#define L 18
#define K 10
long long solve(int n) {
static int dd[L + 1];
static long long dp[L + 1][K][K][2];
int l, i, d, d_, dd_;
l = 0;
while (n > 0) {
dd[l++] = n % 10;
n /= 10;
}
// for (i = 0; i < l; i++)
// printf("%d", dd[i]);
// printf("\n");
for (i = 0; i < L + 1; i++)
for (d = 0; d < K; d++)
for (d_ = 0; d_ < K; d_++)
dp[i][d][d_][0] = dp[i][d][d_][1] = 0;
dp[l][0][0][1] = 1;
for (i = l - 1; i >= 0; i--)
for (d = 0; d < K; d++)
for (d_ = 0; d_ < K; d_++)
if (d != d_)
for (dd_ = 0; dd_ < K; dd_++) {
dp[i][d][d_][0] += dp[i + 1][d_][dd_][0];
if (i < l - 1 || d < dd[i])
dp[i][d][d_][0] += dp[i + 1][d_][dd_][1];
if (d == dd[i])
dp[i][d][d_][1] += dp[i + 1][d_][dd_][1];
}
// for (i = l - 1; i >= 0; i--)
// for (d = 0; d < K; d++)
// for (d_ = 0; d_ < K; d_++)
// printf("dp[%d][%d][%d][0]: %d\n", i, d, d_, dp[i][d][d_][0]);
long long ans = 0;
for (d = 0; d < K; d++)
for (d_ = 0; d_ < K; d_++)
ans += dp[0][d][d_][0];
return ans;
}
int main() {
long long l, r;
scanf("%lld%lld", &l, &r);
printf("%lld\n", solve(r + 1) - solve(l));
return 0;
}
Compilation message
numbers.cpp: In function 'int main()':
numbers.cpp:51:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
51 | scanf("%lld%lld", &l, &r);
| ~~~~~^~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
288 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 5 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 6 |
Correct |
0 ms |
284 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 9 |
Incorrect |
0 ms |
288 KB |
Output isn't correct |
| 10 |
Incorrect |
0 ms |
292 KB |
Output isn't correct |
| 11 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
292 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 16 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 17 |
Incorrect |
0 ms |
288 KB |
Output isn't correct |
| 18 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 19 |
Incorrect |
0 ms |
288 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
288 KB |
Output isn't correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 2 |
Incorrect |
0 ms |
288 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
284 KB |
Output isn't correct |
| 5 |
Incorrect |
1 ms |
284 KB |
Output isn't correct |
| 6 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 7 |
Incorrect |
1 ms |
292 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
288 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 11 |
Incorrect |
0 ms |
292 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 15 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 16 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 17 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 22 |
Incorrect |
1 ms |
288 KB |
Output isn't correct |
| 23 |
Incorrect |
1 ms |
288 KB |
Output isn't correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
284 KB |
Output isn't correct |
| 27 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 28 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 31 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 32 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 33 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 34 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 35 |
Incorrect |
0 ms |
292 KB |
Output isn't correct |
| 36 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 37 |
Incorrect |
0 ms |
288 KB |
Output isn't correct |
| 38 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 39 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 40 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 41 |
Incorrect |
1 ms |
284 KB |
Output isn't correct |
| 42 |
Correct |
1 ms |
212 KB |
Output is correct |
| 43 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 44 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 45 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
