'commit'

TangDou/AcWing/ExGcd/877.cpp

@@ -0,0 +1,25 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int exgcd(int a, int b, int &x, int &y) {
+    if (!b) {
+        x = 1, y = 0;
+        return a;
+    }
+    int d = exgcd(b, a % b, y, x);
+    y -= a / b * x;
+    return d;
+}
+
+int main() {
+    int n;
+    cin >> n;
+    while (n--) {
+        int a, b;
+        cin >> a >> b;
+        int x, y;
+        exgcd(a, b, x, y);
+        printf("%d %d\n", x, y);
+    }
+    return 0;
+}