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author | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
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committer | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
commit | 99e2e923d0c77b02f3fb4ff648ea916954868606 (patch) | |
tree | ec8e03f6f2cd1ce43990fb4fe6cd631967d0237e /works/solutions/acwing/2068.cpp | |
parent | 1cee979f5d36b311a03cc7397a036ba11caf3d42 (diff) | |
download | crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.tar.gz crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.tar.bz2 crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.zip |
chore(store): move everything to store.
Diffstat (limited to 'works/solutions/acwing/2068.cpp')
-rw-r--r-- | works/solutions/acwing/2068.cpp | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/works/solutions/acwing/2068.cpp b/works/solutions/acwing/2068.cpp deleted file mode 100644 index 592f43f..0000000 --- a/works/solutions/acwing/2068.cpp +++ /dev/null @@ -1,57 +0,0 @@ -#include <algorithm>
-#include <cmath>
-#include <cstring>
-#include <iostream>
-
-int n, K;
-int A[100010];
-int c[11][100010];
-long long result;
-
-int CalcDigitCount(int n) {
- int c = 0;
- while (n != 0) {
- c++;
- n /= 10;
- }
- return c;
-}
-
-void work() {
- for (int i = 0; i < n; i++) {
- result += c[CalcDigitCount(A[i])][(K - A[i] % K) % K];
- // Wrong Code I don't know why!
- // int a = A[i];
- // for (int j = 1; j < 11; j++) {
- // a *= 10;
- // a %= K;
- // c[j][a]++;
- // }
- for (int j = 0, power = 1; j < 11; j++) {
- c[j][power * 1ll * A[i] % K]++;
- power = power * 10 % K;
- }
- }
-}
-
-int main() {
- std::ios_base::sync_with_stdio(false);
- std::cin.tie(nullptr);
-
- std::cin >> n >> K;
-
- for (int i = 0; i < n; i++) {
- std::cin >> A[i];
- }
-
- work();
-
- std::reverse(A, A + n);
- std::memset(c, 0, sizeof c);
-
- work();
-
- std::cout << result;
-
- return 0;
-}
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