2017年第八屆藍橋杯 C/C++B組 真題分析與題解（未完待續）
阿新 • • 發佈：2019-02-19
一、前言
二、題目型別與分值分佈
1. 結果填空
（1）購物單 5’
（2）等差素數列 7’
（3）承壓計算 13’
（4）方格分割 17’
2. 程式碼填空
（5）取數位 9’
（6）最大公共子串 11’
3. 程式設計
（7）日期問題 19’
（8）包子湊數 21’
（9）分巧克力 23’
（10）k倍區間 25’
三、真題與題解
1. 標題： 購物單
小明剛剛找到工作，老闆人很好，只是老闆夫人很愛購物。老闆忙的時候經常讓小明幫忙到商場代為購物。小明很厭煩，但又不好推辭。
這不，XX大促銷又來了！老闆夫人開出了長長的購物單，都是有打折優惠的。 【分析】資料處理
#include <stdio.h>
int main()
{
double price=0;
price+=180.90*0.88;
price+=10.25*0.65;
price+=56.14*0.9;
price+=104.65*0.9;
price+=100.30*0.88;
price+=297.15*0.5;
price+=26.75*0.65;
price+=130.62*0.5;
price+=240.28*0.58;
price+=270.62*0.8;
price+=115.87*0.88;
price+=247.34*0.95;
price+=73.21*0.9;
price+=101.00*0.5;
price+=79.54*0.5;
price+=278.44*0.7;
price+=199.26*0.5;
price+=12.97*0.9;
price+=166.30*0.78;
price+=125.50*0.58;
price+=84.98*0.9;
price+=113.35*0.68;
price+=166.57*0.5;
price+=42.56*0.9;
price+=81.90*0.95;
price+=131.78*0.8;
price+=255.89*0.78;
price+=109.17*0.9;
price+=146.69*0.68;
price+=139.33*0.65;
price+=141.16*0.78;
price+=154.74*0.8;
price+=59.42*0.8;
price+=85.44*0.68;
price+=293.70*0.88;
price+=261.79*0.65;
price+=11.30*0.88;
price+=268.27*0.58;
price+=128.29*0.88;
price+=251.03*0.8;
price+=208.39*0.75;
price+=128.88*0.75;
price+=62.06*0.9;
price+=225.87*0.75;
price+=12.89*0.75;
price+=34.28*0.75;
price+=62.16*0.58;
price+=129.12*0.5;
price+=218.37*0.5;
price+=289.69*0.8;
printf("%lf\n",price);
return 0;
}【答案】5200