{"id":969,"date":"2024-07-28T09:00:00","date_gmt":"2024-07-28T01:00:00","guid":{"rendered":"https:\/\/seanxd.com\/?p=969"},"modified":"2024-06-21T11:36:38","modified_gmt":"2024-06-21T03:36:38","slug":"zerojudge-k570","status":"publish","type":"post","link":"https:\/\/seanxd.com\/en\/zerojudge-k570\/","title":{"rendered":"ZeroJudge K570: Store Discounts"},"content":{"rendered":"

I believe a careful planner like you must know that each convenience store offers different discounts on perishable goods at different times.
The following is information related to promotions:<\/p>\n\n\n\n

Store Name<\/th>Store ID<\/th>Discount Time(s)<\/th>Discount<\/th><\/tr><\/thead>
LIME<\/td>0<\/td>18:00 – 00:00<\/td>30% Off<\/td><\/tr>
Your House<\/td>1<\/td>10:00 – 17:00 \/ 17:00 – 00:00<\/td>30% Off<\/td><\/tr>
-4<\/td>2<\/td>10:00 – 17:00 \/ 20:00 – 00:00<\/td>35% Off<\/td><\/tr>
No Prob<\/td>3<\/td>16:30 – 22:30<\/td>40% Off<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Given N transaction records,\n
\nEach transaction record is represented as {id, h, m, a}, where:\n
\nid: convenience store ID\n
\nh: purchase hour\n
\nm: purchase minute\n
\na: original price of the purchased item\n
\nYou can assume that as long as it is within the promotion period of the convenience store, only discounted perishable items will be purchased.\n
\nPlease help calculate the total actual consumption amount after the discount for N transaction records. For each transaction, round down the decimal point<\/strong>.<\/p>\n\n\n\n

Sample Inputs\/Outputs<\/h2>\n\n\n\n
Sample Input(s)<\/th>Sample Output(s)<\/th><\/tr><\/thead>
The first line contains a positive integer N, indicating the number of transaction details.
1 \u2264 N \u2264 1000
Then, there are N lines, each containing four integers id, h, m, a.
They represent the convenience store ID, the purchase hour, the purchase minute, and the original price of the purchased item, respectively.
0 \u2264 id \u2264 3
0 \u2264 h \u2264 23
0 \u2264 m \u2264 59
0 \u2264 a \u2264 1000<\/td>		The total actual consumption amount after the discount should be calculated. For each transaction, round down the decimal point<\/strong>.<\/td><\/tr>
4
0 19 30 100
1 19 30 100
2 19 30 100
3 19 30 100<\/td>		300<\/td><\/tr>
2
0 0 0 100
3 16 0 100<\/td>		170<\/td><\/tr><\/tbody><\/table>
ZeroJudge K570 Sample Test Cases<\/figcaption><\/figure>\n\n\n\n

Thought Process<\/h2>\n\n\n\n

Convert the current time to the unit of \"minutes\" and also convert the discount period into \"minutes\" when using conditional statements.<\/p>\n\n\n\n

Sample Code\uff0dZeroJudge K570: Store Discounts<\/a><\/h3>\n\n\n\n
#include <iostream>\nusing namespace std;\n\nint main() {\n    cin.sync_with_stdio(0);\n    cin.tie(0);\n    int N, ans = 0;\n    cin >> N;\n    for (int i = 0; i<N; i++) {\n        int id, h, m, a;\n        cin >> id >> h >> m >> a;\n        int min = m + (h*60);\n        if (id == 0) {\n            if (min >= 1080 || min == 0) ans += a*0.7;\n            else ans += a;\n            continue;\n        }\n        if (id == 1) {\n            if (min >= 600 || min == 0) ans += a*0.7;\n            else ans += a;\n            continue;\n        }\n        if (id == 2) {\n            if ((min >= 600 && min <= 1020) || min >= 1200 || min == 0) ans += a*.65;\n            else ans += a;\n            continue;\n        }\n\n        if (min >= 990 && min <= 1350) ans += a*.6;\n        else ans += a;\n    }\n    cout << ans << "\\n";\n}\n\n\/\/ZeroJudge K570\n\/\/Dr. SeanXD<\/code><\/pre><\/div>","protected":false},"excerpt":{"rendered":"
\u76f8\u4fe1\u7cbe\u6253\u7d30\u7b97\u7684\u4f60\u4e00\u5b9a\u77e5\u9053\uff0c\u6bcf\u5bb6\u8d85\u5546\u5728\u4e0d\u540c\u6642\u6bb5\u6703\u63d0\u4f9b\u4e0d\u540c\u5373\u671f\u54c1\u512a\u60e0\u3002\u4ee5\u4e0b\u662f\u512a\u60e0\u76f8\u95dc\u8cc7\u8a0a\uff1a \u8d85\u5546\u540d\u7a31 \u8d85\u5546\u7de8\u865f \u512a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[29],"tags":[8,13,9],"class_list":["post-969","post","type-post","status-publish","format-standard","hentry","category-zerojudge-","tag-8","tag-13","tag-9"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/969","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/comments?post=969"}],"version-history":[{"count":2,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/969\/revisions"}],"predecessor-version":[{"id":971,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/969\/revisions\/971"}],"wp:attachment":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/media?parent=969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/categories?post=969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/tags?post=969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}