Submission #28987

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
28987	2017-07-18 02:50:41	tlwpdus	Taxis (POI13_tak)	C++11	100 / 100	196 ms	5924 KiB

tak

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll m, d; int n;
ll x[500100];
int main() {
  int i;
  scanf("%lld%lld%d",&m,&d,&n); m*=2; d*=2;
  for (i=0;i<n;i++) {scanf("%lld",&x[i]);x[i]*=2;}
  sort(x,x+n);
  int idx = lower_bound(x,x+n,m-d)-x;
  if (idx==n) {
    printf("0\n"); return 0;
  }
  ll loc = (d-(x[idx]-(m-d))/2), cur = 0; int cnt = 0;
  for (i=n-1;i>=0;i--) {
    if (cur>=m) {
      printf("%d\n",cnt);
      return 0;
    }
    if (cur>=loc) {
      printf("%d\n",cnt+1);
      return 0;
    }
    if (i==idx) continue;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

tak.cpp: In function 'int main()':
tak.cpp:13:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld%d",&m,&d,&n); m*=2; d*=2;
                              ^
tak.cpp:14:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (i=0;i<n;i++) {scanf("%lld",&x[i]);x[i]*=2;}
                                        ^

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10