1º 查找里程
给你这样一张里程表,如何写一个程序,输入两地的地名,能输出期间的里程?
#include <stdio.h> #include <string.h> #define C_LEN 30 typedef struct city { char name1[C_LEN]; char name2[C_LEN]; int distance; } City; int main(void) { City cities[] = { // 数据如何表示,感觉这样的方法太繁杂,有没有更好的表示方法??? {"Atlanta", "Boston", 1108}, {"Atlanta", "Chicago", 708}, {"Boston", "Chicago", 994}, {"Atlanta", "Denver", 1430}, {"Boston", "Denver", 1998}, {"Chicago", "Denver", 1021}, {"Atlanta", "Detroit", 732}, {"Boston", "Detroit", 799}, {"Chicago", "Detroit", 279}, {"Denver", "Detroit", 1283}, {"Atlanta", "Houston", 791}, {"Boston", "Houston", 1830}, {"Chicago", "Houston", 1091}, {"Denver", "Houston", 1034}, {"Detroit", "Houston", 1276}, {"Atlanta", "Los Angeles", 2191}, {"Boston", "Los Angeles", 3017}, {"Chicago", "Los Angeles", 2048}, {"Denver", "Los Angeles", 1031}, {"Detroit", "Los Angeles", 2288}, {"Houston", "Los Angeles", 1541}, {"Atlanta", "Miami", 663}, {"Boston", "Miami", 1520}, {"Chicago", "Miami", 1397}, {"Denver", "Miami", 2107}, {"Detroit", "Miami", 1385}, {"Houston", "Miami", 1190}, {"Los Angeles", "Miami", 2716}, {"Atlanta", "New York", 854}, {"Boston", "New York", 222}, {"Chicago", "New York", 809}, {"Denver", "New York", 1794}, {"Detroit", "New York", 649}, {"Houston", "New York", 1610}, {"Los Angeles", "New York", 2794}, {"Miami", "New York", 1334}, {"Atlanta", "Philadelphia", 748}, {"Boston", "Philadelphia", 315}, {"Chicago", "Philadelphia", 785}, {"Denver", "Philadelphia", 1739}, {"Detroit", "Philadelphia", 609}, {"Houston", "Philadelphia", 1511}, {"Los Angeles", "Philadelphia", 2703}, {"Miami", "Philadelphia", 1230}, {"New York", "Philadelphia", 101}, {"Atlanta", "San Francisco", 2483}, {"Boston", "San Francisco", 3128}, {"Chicago", "San Francisco", 2173}, {"Denver", "San Francisco", 1255}, {"Detroit", "San Francisco", 2399}, {"Houston", "San Francisco", 1911}, {"Los Angeles", "San Francisco", 387}, {"Miami", "San Francisco", 3093}, {"New York", "San Francisco", 2930}, {"Philadelphia", "San Francisco", 2902}, {"Atlanta", "Seattle", 2625}, {"Boston", "Seattle", 3016}, {"Chicago", "Seattle", 2052}, {"Denver", "Seattle", 1341}, {"Detroit", "Seattle", 2327}, {"Houston", "Seattle", 2369}, {"Los Angeles", "Seattle", 1134}, {"Miami", "Seattle", 3303}, {"New York", "Seattle", 2841}, {"Philadelphia", "Seattle", 2816}, {"San Francisco", "Seattle", 810} }; char city1[C_LEN]; char city2[C_LEN]; printf("请输入第一个城市名: "); gets(city1); printf("请输入第二个城市名: "); gets(city2); for(int i = 0; i < sizeof(cities) / sizeof(cities[0]); i++) { if(strcmp(city1, city2) == 0) { printf("两个城市之间的距离: %d\n", 0); break; } else if((strcmp(city1, cities[i].name1) == 0 && strcmp(city2, cities[i].name2) == 0) || (strcmp(city1, cities[i].name2) == 0 && strcmp(city2, cities[i].name1) == 0)) { printf("两个城市之间的距离: %d\n", cities[i].distance); break; } } return 0; }
2º 排序
题目内容:
程序读入一个正整数n(0<n<=100000),然后读入n个整数,均为32位下的整数。输出对这个整数排序后的结果,每个整数后面有一个空格。
输入格式:
一个表示个数的正整数n,和n个整数,以空格间隔。
输出格式:
排序后的n的整数,每个整数后面有一个空格。
输入样例:
6 2 23 54 12 6 8
输出样例:
2 6 8 12 23 54
解答:(So easy)
#include <stdio.h> #include <stdlib.h> void sort(int a[], int len); int main(void) { int count, i; scanf("%d", &count); int *number_array = (int *)malloc(count * sizeof(int)); if(number_array != NULL) { for(i = 0; i < count; i++) scanf("%d", &number_array[i]); } sort(number_array, count); for(i = 0; i < count; i++) printf("%d ", number_array[i]); printf("\n"); free(number_array); return 0; } void sort(int a[], int len) { int temp; for(int i = 0; i < len - 1; i++) { for(int j = i; j < len; j++) if(a[i] > a[j]) { temp = a[i]; a[i] = a[j]; a[j] = temp; } } }