Qt技巧-快速求最值

const T &qMax(const T &a, const T &b)

const T &qMin(const T &a, const T &b)

const T &qBound(const T &v1, 
                const T &v2, 
                const T &v3)

#include<algorithm>
template<class ForwardIt, class Compare>
ForwardIt std::min_element(ForwardIt first, 
                           ForwardIt last, 
                           Compare comp)
                           
ForwardIt std::max_element(ForwardIt first, 
                           ForwardIt last, 
                           Compare comp)

QStringList list{"1", "3", "2"};
QString maxValue = *std::max_element(list.begin(), list.end());
QString minValue = *std::min_element(list.begin(), list.end());

int array[] = {1, 5, 4, 3, 2, 0};
int maxValue = *std::max_element(array, 
                                 array + sizeof(array)/sizeof(array[0]));
                                 
int minValue = *std::min_element(array, 
                                 array + sizeof(array)/sizeof(array[0]));