Submission #28970

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
28970	2017-07-18 02:23:38	khsoo01	Taxis (POI13_tak)	C++11	100 / 100	213 ms	5924 KiB

tak

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll N = 500005;
ll m, d, n, a[N];
int main()
{
  scanf("%lld%lld%lld",&m,&d,&n);
  for(ll i=1;i<=n;i++) {
    scanf("%lld",&a[i]);
  }
  sort(a+1, a+1+n);
  ll C = 0, V = 0, X = 0;
  for(ll i=n;i>=1;i--) {
    if(a[i] - abs(d-C) > 0) {
      C += a[i] - abs(d-C);
      V++;
    }
    if(C >= m) {
      printf("%lld\n", V);
      return 0;
    }
  }
  C = 0; V = 0;
  bool flag = false;
  for(ll i=0;i<=n;i++) {
    if(a[i] >= m-d) {
      X = a[i]; a[i] = 0;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

tak.cpp: In function 'int main()':
tak.cpp:10:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld%lld",&m,&d,&n);
                                ^
tak.cpp:12:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
                      ^

• 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