题解 | #游船出租#
游船出租
https://ac.nowcoder.com/practice/50fc5c0009cf4083bca5fbedcb4b6dc0
#include <cmath> #include <cstdio> #include <cstring> #include <iostream> #include <map> #include <utility> //如果非要写的话 //这个评论区大佬解释真正的规则 评测案例有问题,与题目描述不符 在评测案例里,如果一艘船租了,还了,然后又还了一次,相当于租还了2次(正确的应该是租还一次)。 比如: 1 S 00:00 1 E 01:00 1 E 02:00 0 S 00:00 -1 结果为 2 90 //就是只要船租过一次,就可以一直还,不用考虑船的状态,坑的一 using namespace std; int tominute(int a, int b) { return a * 60 + b; } int main() { int a, c, d; char b; map<int, int> m; // memset(m, pair<int, int>(0,0), sizeof(m)); map<int, int> z; //状态0空闲1忙碌 int sum = 0, count = 0; while (scanf("%d %c %d:%d", &a, &b, &c, &d)) { // 注意 while 处理多个 case // if (a == -1) // break; if (a == 0) { //结算 if (count == 0) { cout << 0 << " " << 0 << endl; } else { // cout << count << " " << sum << endl; cout << count << " " << int((float)sum / (float)count + 0.5) << endl; } break; } else { // cout << a << " " << b << " " << c << " " << d << endl; if ( b == 'S') { //空闲 z[a] = 1; m[a] = tominute(c, d); } if ( z[a] == 1 && b == 'E') { count++; sum += (tominute(c, d) - m[a] ); } } } } // 64 位输出请用 printf("%lld")