atcoder/abc027A

Author: xirc

atcoder/abc027/A/main.cpp

@@ -0,0 +1,20 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+using ll = int64_t;
+using ff = long double;
+
+int main() {
+    ios_base::sync_with_stdio(false);
+    cin.tie(0); cout.tie(0);
+
+    vector<int> ls(3);
+    cin >> ls[0] >> ls[1] >> ls[2];
+    int ans = 0;
+    if (ls[0] == ls[1]) ans = ls[2];
+    if (ls[1] == ls[2]) ans = ls[0];
+    if (ls[2] == ls[0]) ans = ls[1];
+    cout << ans << endl;
+
+    return 0;
+}