hdoj 1864 最大报销额 【DP】【01背包】【水】

题意理解错了，以为是单个物品不能超过600了

#include <stdio.h>
#include <string.h>
#define N 31
bool f[30*1000*100+1];
int main()
{
	int flag, n, m, i, j, q, price, sum, pa, pb, pc;
	char type;
	float temp; 
	while(scanf("%f%d", &temp, &n), n){
		q = (int)(temp * 100);
		memset(f, false, sizeof(f));
		f[0] = true;
		while(n--){
			sum = flag = pa = pb = pc = 0;
			scanf("%d", &m);
			while(m--){
				scanf(" %c:%f", &type, &temp);
				price = (int)(temp*100);
				if( !flag){
					switch(type){
						case 'A': 	pa += price; break;
						case 'B': 	pb += price; break;
						case 'C': 	pc += price; break;
						default: flag = 1; break;
					}
					sum += price;
				}
			}
			if( !flag && sum <= 1000*100 && pa <= 600*100 && pb <= 600*100 && pc <= 600*100)
				for(i=q; i>=sum; i--)
					if(f[i-sum])
						f[i] = true;
		}
		for(i=q; i>=0; i--)
			if(f[i])
				break;
		printf("%.2f\n", i*1.0/100);
	}
	return 0;
}

vim中 "+yG 挺好用的～