本文主要是介绍hdu 5308 I Wanna Become A 24-Point Master(构造），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
题目链接：hdu 5308 I Wanna Become A 24-Point Master
#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;int n;int main() {while (~scanf("%d", &n)) {if (n == 1 || n == 2 || n == 3) printf("-1\n");else if (n == 4) {printf("1 * 2\n");printf("5 + 3\n");printf("6 + 4\n");} else if (n == 5) {printf("1 * 2\n");printf("3 * 6\n");printf("7 - 4\n");printf("8 / 5\n");} else if (n == 6) {printf("1 + 2\n");printf("3 + 4\n");printf("5 / 6\n");printf("7 + 8\n");printf("9 * 10\n");} else if (n == 7) {printf("1 + 2\n");printf("3 + 4\n");printf("5 + 8\n");printf("6 + 9\n");printf("10 / 7\n");printf("11 + 12\n");} else if (n == 8) {printf("1 - 2\n");printf("3 - 4\n");printf("5 + 6\n");printf("7 * 9\n");printf("8 + 11\n");printf("10 + 13\n");printf("12 + 14\n");} else if (n == 9) {printf("1 + 2\n");printf("3 + 4\n");printf("5 - 6\n");printf("7 + 10\n");printf("8 + 11\n");printf("13 / 9\n");printf("14 - 15\n");printf("16 + 12\n");} else if (n == 10) {printf("1 + 2\n");printf("3 / 4\n");printf("5 / 6\n");printf("7 / 8\n");printf("9 / 10\n");printf("11 + 12\n");printf("13 + 16\n");printf("14 + 17\n");printf("15 + 18\n");} else if (n == 11) {printf("1 + 2\n");printf("3 - 4\n");printf("5 - 6\n");printf("7 / 8\n");printf("9 / 10\n");printf("12 + 15\n");printf("11 * 13\n");printf("14 * 18\n");printf("16 + 17\n");printf("19 + 20\n");} else if (n >= 12) {if (n == 13) {printf("1 + 2\n");printf("14 / 3\n");printf("4 + 5\n");printf("16 / 6\n");printf("7 + 8\n");printf("18 / 9\n");printf("10 + 11\n");printf("20 + 12\n");printf("21 / 13\n");printf("15 * 17\n");printf("23 * 19\n");printf("24 * 22\n");} else {printf("1 + 2\n");printf("%d + 3\n", n + 1);printf("%d + 4\n", n + 2);printf("%d / 5\n", n + 3);printf("6 + 7\n");printf("%d + 8\n", n + 5);printf("%d + 9\n", n + 6);printf("%d + 10\n", n + 7);printf("%d + 11\n", n + 8);printf("%d / 12\n", n + 9);printf("%d * %d\n", n + 4, n + 10);if (n > 12) {printf("14 - 13\n");for (int i = 15; i <= n; i++) {printf("%d * %d\n", n + i - 3, i);}printf("%d + %d\n", n + 11, 2 * n - 2);}}}}return 0;
}
这篇关于hdu 5308 I Wanna Become A 24-Point Master(构造）的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
