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| author | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
|---|---|---|
| committer | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
| commit | 99e2e923d0c77b02f3fb4ff648ea916954868606 (patch) | |
| tree | ec8e03f6f2cd1ce43990fb4fe6cd631967d0237e /store/works/solutions/acwing/1221.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 'store/works/solutions/acwing/1221.cpp')
| -rw-r--r-- | store/works/solutions/acwing/1221.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/store/works/solutions/acwing/1221.cpp b/store/works/solutions/acwing/1221.cpp new file mode 100644 index 0000000..9ba4229 --- /dev/null +++ b/store/works/solutions/acwing/1221.cpp @@ -0,0 +1,45 @@ +#include <cmath>
+#include <iostream>
+
+const int M = 5000010;
+const int SM = std::sqrt(M / 2);
+
+int s[M];
+
+int main() {
+ int n;
+ std::cin >> n;
+
+ for (int i = 0; i <= SM; i++) {
+ const int i2 = i * i;
+ const int SMB = M - i2;
+ for (int j = i; j * j < SMB; j++) {
+ const int a = i2 + j * j;
+
+ if (s[a] == 0) {
+ s[a] = i + 1;
+ }
+ }
+ }
+
+ int sm = std::sqrt(n);
+
+ for (int a = 0; a <= sm; a++) {
+ int as = a * a;
+ int bsm = n - 3 * a * a;
+ for (int b = a; b * b <= bsm; b++) {
+ int bs = b * b + as;
+
+ int c = s[n - bs];
+
+ if (c != 0) {
+ c = c - 1;
+ std::cout << a << ' ' << b << ' ' << c << ' '
+ << std::sqrt(n - bs - c * c);
+ return 0;
+ }
+ }
+ }
+
+ return 0;
+}
|