delete pics to save space

1.5020.cpp

@@ -0,0 +1,32 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+const int maxn=105;
+const int maxv=25005;
+int T,n,a[maxn];
+int vis[maxv];
+int solve()
+{
+    int maxv=a[1];
+    for(int i=2;i<=n;i++) maxv=max(maxv,a[i]);
+    memset(vis,0,sizeof(vis));
+    vis[0]=1;
+    for(int i=1;i<=n;i++)
+        for(int k=0;k+a[i]<=maxv;k++)
+            vis[k+a[i]]=min(2,vis[k+a[i]]+vis[k]);
+    int res=n;
+    for(int i=1;i<=n;i++) if(vis[a[i]]>=2) res--;
+    return res;
+}
+int main()
+{
+    scanf("%d",&T);
+    while(T-->0)
+    {
+        scanf("%d",&n);
+        for(int i=1;i<=n;i++) scanf("%d",&a[i]);
+        printf("%d\n",solve());
+    }
+    return 0;
+}