Create 1170_JDPlus.cpp

From http://blog.csdn.net/jdplus/article/details/19827909

POJ/1170_JDPlus.cpp

@@ -0,0 +1,95 @@
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+
+int code[6];       //商品代码
+int num[6];        //商品数量
+int price[6];      //商品价格
+int special_num[100][6]; //促销项目各个商品数量
+int special_cnt[100];    //促销项目的商品数量
+int special_price[100];  //促销项目价格
+int basket;              
+int special;
+int dp[6][6][6][6][6];
+
+int Decode (int c){
+	int i;
+	for (i=1; i<=5; ++i){
+		if (code[i] == c)
+			break;
+	}
+	return i;
+}
+
+void Init(){
+	int i;
+	int j;
+	int c;
+	int k;
+	int index;
+
+	scanf ("%d", &basket);
+	for (i=1; i<=basket; ++i){
+		scanf ("%d%d%d", &code[i], &num[i], &price[i]);
+	}
+	scanf ("%d", &special);
+	for (i=1; i<=special; ++i){
+		scanf ("%d", &special_cnt[i]);
+		for (j=1; j<=special_cnt[i]; ++j){
+			scanf ("%d%d", &c, &k);
+			index = Decode (c);
+			special_num[i][index] = k;
+		}
+		scanf ("%d", &special_price[i]);
+	}
+}
+
+void Lowest_Price (){
+	int i1, i2, i3, i4, i5;
+	int i;
+	int tmp1, tmp2;
+	memset (dp, -1, sizeof(dp));
+	dp[0][0][0][0][0] = 0;
+	for (i1=0; i1<=num[1]; ++i1){
+		for (i2=0; i2<=num[2]; ++i2){
+			for (i3=0; i3<=num[3]; ++i3){
+				for (i4=0; i4<=num[4]; ++i4){
+					for (i5=0; i5<=num[5]; ++i5){
+						tmp1 = INT_MAX;
+						tmp2 = INT_MAX;
+						for (i=1; i<=special; ++i){
+							if (i1 >= special_num[i][1] && 
+								i2 >= special_num[i][2] &&
+								i3 >= special_num[i][3] &&
+								i4 >= special_num[i][4] &&
+								i5 >= special_num[i][5]){
+								tmp2 = dp[i1-special_num[i][1]]
+										 [i2-special_num[i][2]]
+										 [i3-special_num[i][3]]
+										 [i4-special_num[i][4]]
+										 [i5-special_num[i][5]] + special_price[i];
+							if (tmp1 > tmp2)
+								tmp1 = tmp2;
+							}
+						}
+						if (tmp1 != INT_MAX){
+							dp[i1][i2][i3][i4][i5] = tmp1;
+						}
+						else{
+							dp[i1][i2][i3][i4][i5] = i1 * price[1] + i2 * price[2]
+									+ i3 * price[3] + i4 * price[4] + i5 * price[5];
+						}
+					}
+				}
+			}
+		}
+	}
+	printf ("%d\n", dp[num[1]][num[2]][num[3]][num[4]][num[5]]);
+}
+
+int main(void){
+	Init ();
+	Lowest_Price ();
+
+	return 0;
+}