'commit'

TangDou/LuoGuBook/P2234.cpp

@@ -0,0 +1,23 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+const int N = 32768;
+const int INF = 0x3f3f3f3f;
+int a[N];
+int n;
+//10个测试点过了3个，得30分，7个测试点TLE
+int main() {
+    cin >> n;
+    for (int i = 1; i <= n; i++) cin >> a[i];
+    int sum = a[1];
+    for (int i = 2; i <= n; i++) {
+        //每一个都向前找，找出差的绝对值最小的数
+        int minX = INF;
+        for (int j = i - 1; j >= 1; j--)
+            if (abs(a[j] - a[i]) < minX) minX = abs(a[j] - a[i]);
+        sum += minX;
+    }
+    cout << sum << endl;
+    return 0;
+}