
问题陈述
给定一个包含 n 个正整数的数组。我们必须找到素数具有最小值和最大值的数字。
如果给定的数组是 –
arr [] = {10, 4, 1, 12, 13, 7, 6, 2, 27, 33}then minimum prime number is 2 and maximum prime number is 13
算法
1. Find maximum number from given number. Let us call it maxNumber2. Generate prime numbers from 1 to maxNumber and store them in a dynamic array3. Iterate input array and use dynamic array to find prime number with minimum and maximum value
Example
的中文翻译为:
示例
#include #include #include #define SIZE(arr) (sizeof(arr) / sizeof(arr[0]))using namespace std;void printMinAndMaxPrimes(int *arr, int n){ int maxNumber = *max_element(arr, arr + n); vector primes(maxNumber + 1, true); primes[0] = primes[1] = false; for (int p = 2; p * p <= maxNumber; ++i) { if (primes[p]) { for (int i = p * 2; i <= maxNumber; i += p) { primes[p] = false; } } } int minPrime = INT_MAX; int maxPrime = INT_MIN; for (int i = 0; i < n; ++i) { if (primes[arr[i]]) { minPrime = min(minPrime, arr[i]); maxPrime = max(maxPrime, arr[i]); } } cout << "Prime number of min value = " << minPrime << ""; cout << "Prime number of max value = " << maxPrime << "
";}int main(){ int arr [] = {10, 4, 1, 12, 13, 7, 6, 2, 27, 33}; printMinAndMaxPrimes(arr, SIZE(arr)); return 0;}
输出
当您编译并执行上述程序时,它会生成以下输出 −
Prime number of min value = 2Prime number of max value = 13
以上就是C程序在数组中找到最小和最大的质数的详细内容,更多请关注创想鸟其它相关文章!
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