'commit'
This commit is contained in:
46
C++专题课程/NOIP算法总结/模拟/花生采摘/P1086.cpp
Normal file
46
C++专题课程/NOIP算法总结/模拟/花生采摘/P1086.cpp
Normal file
@@ -0,0 +1,46 @@
|
||||
#include<iostream>
|
||||
#include<queue>
|
||||
#include<cmath>
|
||||
|
||||
using namespace std;
|
||||
|
||||
struct hs //指花生:)
|
||||
{
|
||||
int x, y, v;
|
||||
bool operator < (const hs & a) const
|
||||
{
|
||||
return v < a.v;
|
||||
}//优先队列默认从大到小排序,但是需要用到小于号,所以这里重载运算符 < (只重载<就可以了)
|
||||
};
|
||||
|
||||
priority_queue <hs> q;
|
||||
|
||||
int main()
|
||||
{
|
||||
int m, n, k;
|
||||
int sum = 0;
|
||||
cin >> m >> n >> k;
|
||||
int a;
|
||||
hs t;
|
||||
for(int i = 1; i <= m; i++)
|
||||
for(int j = 1; j <= n; j++)
|
||||
{
|
||||
cin >> a;
|
||||
t.v = a;
|
||||
t.x = j;
|
||||
t.y = i;
|
||||
if(a != 0) //如果有数值,就推进队列
|
||||
q.push(t);
|
||||
}
|
||||
k -= q.top().y; //走到最大的花生植株
|
||||
while(!q.empty() && k > q.top().y) //第一个是检验队列不为空,如果空了说明全摘完了,第二个是检验剩余的时间可以走回路边
|
||||
{
|
||||
k--; //只要进入一次循环,说明到了一棵植株,采摘耗费1时间
|
||||
sum += q.top().v;
|
||||
int lx = q.top().x, ly = q.top().y;
|
||||
q.pop();//换下一棵树
|
||||
k -= abs(lx - q.top().x) + abs(ly - q.top().y);//剩余的时间减去从上一棵植株到这棵的时间
|
||||
}
|
||||
cout << sum << endl;
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user