USACO 1.1.2 Greedy Gift Givers

纯模拟,刚开始我把题意看错了,以为遇到0 0就终止,WA多次。其实题意是要接受NP组数据(NP是总人数),对每组数据进行简单处理就可以,不再赘述。


代码(普通查找O(n)):

/*
ID: michael139
LANG: C
PROG: gift1
*/
#include<stdio.h>
#include<string.h>
typedef struct {
    char name[20];
    int money;
} Person;
int main () {
    FILE *fin  = fopen ("gift1.in", "r");
    FILE *fout = fopen ("gift1.out", "w");
    int n,i,j,a,b,k;
    char temp_name[20];
    Person p[15];
    fscanf(fin,"%d",&n);
    for (i=0;i<n;i++) {
        fscanf(fin,"%s",p[i].name);
        p[i].money = 0;
    }
    for (k=0;k<n;k++){
        fscanf(fin,"%s",temp_name);
        fscanf(fin,"%d%d",&a,&b);
        if (!b) continue;
        for (i=0;i<n;i++) {
            if (!strcmp(p[i].name,temp_name)) {
                p[i].money -= (a-a%b);
                break;
            }
        }
        for (i=0;i<b;i++) {
            fscanf(fin,"%s",temp_name);
            if(a) for (j=0;j<n;j++) {
                if (!strcmp(p[j].name,temp_name)) {
                    p[j].money += (a/b);
                    break;
                }
            }
        }
    }
    for (i=0;i<n;i++) fprintf(fout,"%s %d\n",p[i].name,p[i].money);
    return 0;
}


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