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authorYuqian Yang <crupest@crupest.life>2025-02-12 15:55:21 +0800
committerYuqian Yang <crupest@crupest.life>2025-02-12 16:04:50 +0800
commit77e6cdc863d2cbd9df578a665804daf28d8593fe (patch)
tree62c9f3e071d8d1d6fe125fe801907db11784332e /works/solutions/acwing/1230.cpp
parent10eb95869601e145b1d8bc909424777c25752d51 (diff)
parenta557fa36a22c5ef4a29da596ee1e3aa10be55984 (diff)
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import(solutions): IMPORT crupest/solutions COMPLETE.
Diffstat (limited to 'works/solutions/acwing/1230.cpp')
-rw-r--r--works/solutions/acwing/1230.cpp36
1 files changed, 36 insertions, 0 deletions
diff --git a/works/solutions/acwing/1230.cpp b/works/solutions/acwing/1230.cpp
new file mode 100644
index 0000000..958cbdd
--- /dev/null
+++ b/works/solutions/acwing/1230.cpp
@@ -0,0 +1,36 @@
+#include <iostream>
+
+using ll = long long;
+
+const int M = 100010;
+
+int N, K;
+ll p;
+int c[M];
+ll result;
+
+int main() {
+ std::ios_base::sync_with_stdio(false);
+ std::cin.tie(nullptr);
+
+ std::cin >> N >> K;
+
+ c[0] = 1;
+
+ for (int i = 1; i <= N; i++) {
+ int a;
+ std::cin >> a;
+
+ p += a;
+
+ int r = p % K;
+
+ result += c[r];
+
+ c[r]++;
+ }
+
+ std::cout << result;
+
+ return 0;
+}