剑指OFFER 包含min函数的栈

Posted 2020-11-25 virgildevil

剑指OFFER 包含min函数的栈

手动实现栈,考查基本知识的掌握

class Solution {
public:
    static const int stack_size = 100000;
    int s[stack_size];
    int* mytop = s;
    
    void push(int value) {
        *mytop = value;
        mytop++;
    }
    void pop() {
        if(mytop == s)return;
        mytop--;
    }
    int top() {
        return *mytop;
    }
    int min() {
        int res = INT_MAX;
        for(int i=0;i<mytop-s;i++)
        {
            if(s[i]<res)res = s[i];
        }
        return res;
    }
};