delete pics to save space

2.1614.cpp

@@ -0,0 +1,56 @@
+#include <iostream>
+#include <algorithm>
+using namespace std;
+struct point
+{
+    int num, s, pos;
+}op[100005];
+bool cmp1(const point &a, const point &b)
+{
+    return a.num < b.num;
+}
+bool cmp2(const point &a, const point &b)
+{
+    return a.pos < b.pos;
+}
+int main()
+{
+    int n;
+
+    while(cin >> n)
+    {
+        long long sum = 0;
+        for(int i = 0; i < n; i++)
+        {
+            int m;
+            scanf("%d", &m);
+            op[i].num = m;
+            op[i].pos = i;
+            op[i].s = 1;
+            sum += m;
+        }
+        if(sum % 2)
+		{
+            cout << "No"<< endl;
+            continue;
+        }
+        sort(op, op+n, cmp1);
+        sum /= 2;
+        for(int i = n-1; i >= 0; i--)
+        {
+            if(sum >= op[i].num)
+			{
+                sum -= op[i].num;
+                op[i].s = -1;
+            }
+            if(sum == 0)
+                break;
+        }
+        cout << "Yes" << endl;
+        sort(op, op+n, cmp2);
+        for(int i = 0; i < n-1; i++)
+            cout << op[i].s << " ";
+        cout << op[n-1].s << endl;
+    }
+    return 0;
+}