@xixi003

Leetcode-Container With Most Water


题目描述

Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.

Note: You may not slant the container.

AC代码

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <vector>

using namespace std;

int maxArea(vector<int> &height)
{
    	if(height.size() < 2)
    		return 0;
    	int i = 0, j = height.size() - 1;
    	int maxarea = 0;
    	while(i < j)
    	{
    		int area = 0;
    		if(height[i] < height[j])
    		{
    			area = height[i] * (j - i);
    			++i;
    		}
    		else
    		{
    			area = height[j] * (j - i);
    			--j;
    		}
    		if(maxarea < area)
    			maxarea = area;
    	}
    	return maxarea;
}

int main()
{
    
    #ifndef ok
    	freopen("in5.in", "r", stdin);
    	freopen("std5.out", "w", stdout);
    #endif
    
    	vector<int> height;
    	int time, c;
    	cin>>time;
    	while(time--)
    	{
    		cin>>c;
    		height.push_back(c);
    	}
    	cout<<maxArea(height)<<endl;
    
    #ifndef ok
    	fclose(stdin);
    	fclose(stdout);
    #endif
    
    	return 0;
    
}