delete pics to save space

1.2577.cpp

@@ -0,0 +1,29 @@
+#include<cstdio>
+#include<cstring>
+#include<algorithm>
+using namespace std;
+struct Node { int a,b; };
+inline bool operator<(const Node &a,const Node &b) { return a.b>b.b; }
+int n,s[205],f[205][40005]; Node p[205];
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	scanf("%d",&n);
+	for(int i=1;i<=n;i++) scanf("%d%d",&p[i].a,&p[i].b);
+	sort(p+1,p+1+n);
+	for(int i=1;i<=n;i++) s[i]=s[i-1]+p[i].a;
+	memset(f,0x3f,sizeof(f));
+	f[0][0]=0;
+	for(int i=1;i<=n;i++)
+		for(int j=0;j<=s[i];j++)
+		{
+			if(j>=p[i].a) f[i][j]=max(f[i-1][j-p[i].a],j+p[i].b);
+			f[i][j]=min(f[i][j],max(f[i-1][j],s[i]-j+p[i].b));
+		}
+	int res=0x3f3f3f3f;
+	for(int i=0;i<=s[n];i++) res=min(res,f[n][i]);
+	printf("%d\n",res);
+	return 0;
+}