P1115 最大子段和

R72982914

Luogu/P1115/P1115.cpp

@@ -0,0 +1,24 @@
+#include <iostream>
+#include <limits>
+
+using std::cin;
+using std::cout;
+const char endl = '\n';
+
+const int N = 2e5 + 5;
+
+int n, f[N], ans = std::numeric_limits<int>::min();
+
+int main() {
+    std::ios::sync_with_stdio(false);
+
+    cin >> n;
+    for (int i = 1, x; i <= n; i++) {
+        cin >> x;
+        f[i] = std::max(f[i - 1] + x, x);
+        ans = std::max(ans, f[i]);
+    }
+    cout << ans << endl;
+
+    return 0;
+}