bool cmp(double a,double b) { return a>b; }
时间: 2024-06-04 09:11:40 浏览: 16
This is a function that compares two double values and returns true if the first value is greater than the second value, and false otherwise.
The function takes two double values as input parameters and uses the greater than operator (>) to compare them. If the first value is greater than the second value, the function returns true, otherwise it returns false.
This function can be used as a sorting criteria for sorting an array of double values in descending order. For example, if we have an array of double values called "arr" and we want to sort it in descending order, we can use the std::sort function with this function as the sorting criteria:
std::sort(arr, arr+n, cmp);
Here, "n" is the size of the array. The std::sort function will sort the array in descending order using the cmp function.
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