Submission #1285730

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285730		ggillianjiang	코끼리 (Dancing Elephants) (IOI11_elephants)	C++20	0 / 100	1 ms	332 KiB

elephants

#include "elephants.h"
#include <cstdio>
#include <vector>
#include <utility>

using namespace std;

#define loop(s) for(int a = 0; a < s; ++a)
using vec_t = vector<int>;
using p_t = pair<int, pair<int, int> >;
using vp_t = vector< p_t >;
using vv_t = vector< vector<int> >;
int n, l, least;
vec_t x;
vec_t pos;
vp_t cameras;

vv_t frames;

void init(int N, int L, int X[])
{
  int M, i, y;
  n=N;
  l=L;

  loop(sizeof(*X)/sizeof(X[0])){
    frames[X[a]/l].push_back(X[a]);
    if(X[a]/l != X[a-1]/l) least++;
  }

  printf("%d", least);

  loop(M){
    scanf("%d %d", i, y);
    update(i,y);
  }

}

int update(int i, int y)
{
    bool empty;
    loop(frames[i/l].size()){
      if(frames[i/l][a]==-1) continue;
      else if(frames[i/l][a]==i && a==frames[i/l].size()-1) frames[i/l].pop_back();
      else if(frames[i/l][a]==i) frames[i/l][a] = -1;
      else empty = false;
    }

    if(empty) least--;

    frames[y/l].push_back(y);

    if(frames[y/l]!=frames[i/l]) least++;

    return least;
}

Compilation message (stderr)

elephants.cpp: In function 'void init(int, int, int*)':
elephants.cpp:34:13: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'int' [-Wformat=]
   34 |     scanf("%d %d", i, y);
      |            ~^      ~
      |             |      |
      |             int*   int
elephants.cpp:34:16: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'int' [-Wformat=]
   34 |     scanf("%d %d", i, y);
      |               ~^      ~
      |                |      |
      |                int*   int
elephants.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   34 |     scanf("%d %d", i, y);
      |     ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 16
• Subtask 3: 0 / 24
• Subtask 4: 0 / 47
• Subtask 5: 0 / 3