On his trip to Luxor and Aswan, Sagheer went to a Nubian market to buy some souvenirs for his friends and relatives. The market has some strange rules. It contains n different items numbered from 1 to n. The i-th item has base cost aiEgyptian pounds.…

题目描述: Sagheer and Nubian Market time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output On his trip to Luxor and Aswan, Sagheer went to a Nubian market to buy some souvenirs for his friends and re…

Sagheer and Nubian Market CodeForces - 812C 题意:n个货物,每个货物基础价格是ai. 当你一共购买k个货物时,每个货物的价格为a[i]+k*i. 每个货物只能购买一次.给你s金币,问你最多可以购买多少个货物,这些货物的最小花费. 题解: 直接二分(1~n)购买数量,每次二分都对每个货物计算价格a[i]+mid*i. 结构体对价格排序,mid个货物总价格大于s的时候break并往小二分,否则往大二分. 数据类型开long long. #include <…

http://codeforces.com/contest/812/problem/C [题意] 如何花最少的钱买最多的纪念品?首要满足纪念品尽可能多,纪念品数量一样花钱要最少,输出纪念品数量以及最少花费. 纪念品的价钱是这么定义的:,其中a是基价,k是总共要买的纪念品数量,x是纪念品的index. 题目给出各个纪念品的基价a(当然,x也随之确定) [思路] 二分纪念品数量,判断是否满足题意直接贪心,O(n)算出每个纪念品的价钱,O(nlogn)排序,选出最小的mid个: 二分时间复杂度O(n)…

题目链接 : http://codeforces.com/problemset/problem/812/C 题意 : 给你 n 件物品和你拥有的钱 S, 接下来给出这 n 件物品的价格, 这些物品的价值不是固定不变的, 价格的变化公式是 a[i]+k*i (i代表第 i 件物品, k 代表你选择买的物品数量, a[i]为物品的底价), 现问你最多能够买多少件物品和所买物品总和, 输出时应该使得所买物品总和尽量小 分析 : 如果我当前能买 k 件物品, 那我肯定能买数量小于 k 的物品, 如果我当…

模拟赛给他们出T1好了~ code: #include <bits/stdc++.h> #define ll long long #define N 100006 #define setIO(s) freopen(s".in","r",stdin) using namespace std; int n; ll a[N],ck,A[N],S; int check(int tmp) { int i,cnt=0; for(i=1;i<=n;++i) A[…

C - Sagheer and Nubian Market 思路: 二分: 代码: #include <bits/stdc++.h> using namespace std; #define maxn 1000005 #define ll long long ll n,s,ai[maxn],ci[maxn]; inline void in(ll &now) { ; ') Cget=getchar(); +Cget-',Cget=getchar(); } int main() { ;i&…

C. Sagheer and Nubian Market time limit per test  2 seconds memory limit per test  256 megabytes   On his trip to Luxor and Aswan, Sagheer went to a Nubian market to buy some souvenirs for his friends and relatives. The market has some strange rules.…

C. Sagheer and Nubian Market time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output On his trip to Luxor and Aswan, Sagheer went to a Nubian market to buy some souvenirs for his friends and relat…

CF812C Sagheer and Nubian Market 洛谷评测传送门 题目描述 On his trip to Luxor and Aswan, Sagheer went to a Nubian market to buy some souvenirs for his friends and relatives. The market has some strange rules. It contains nn different items numbered from 11 to n…