72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
#include <stdio.h>
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#include <stdlib.h>
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#include <algorithm>
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#include <string.h>
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using namespace std;
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int place[200010] ;
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int main()
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{
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int n, m;
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while(scanf("%d%d", &n, &m)!=EOF)
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{
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memset(place, 0, sizeof(place) );
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bool flag1 ,flag2;
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flag1 = flag2 = 0;
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for(int i=0; i<n; i++)
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{
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scanf("%d", &place[i]);
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if(place[i] < 0 ) flag1 = 1;
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else flag2 = 1;
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}
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sort(place, place+n);
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if(flag1 && !flag2)
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{
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int max = 0, t_m = m;
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for(int i=0; i<n; i++)
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{
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if(abs(place[i]) <= m)
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{max = n -i; break;}
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}
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printf("%d\n", max);
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}
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else if(!flag1 && flag2)
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{
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int max = n, t_m = m;
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for(int i=0; i<n; i++)
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{
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if((place[i]) > m)
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{max = i; break;}
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}
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printf("%d\n", max);
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}
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else if(flag1 && flag2)
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{
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int max = 0, t_m = m;
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int turn;
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for(int i=0; i<n; i++)
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if(place[i] >= 0) {turn = i; break;}
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for(int i=0; i<turn; i++)
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{
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int t_max = 0;
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for(int j=turn; j<n; j++)
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{
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if(2*abs(place[i]) + place[j] <= m)
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t_max = j-i+1;
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if(t_max > max) max = t_max;
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}
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}
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for(int i=0; i<turn; i++)
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{
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int t_max = 0;
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for(int j=turn; j<n; j++)
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{
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if(abs(place[i]) + 2*place[j] <= m)
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t_max = j-i+1;
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if(t_max > max) max = t_max;
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}
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}
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printf("%d\n", max);
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}
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}
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}
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