Submission #115857

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
115857	2019-06-09 10:55:39	songc	Dancing Elephants (IOI11_elephants)	C++14	100 / 100	3493 ms	13384 KiB

elephants

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#include "elephants.h"
#include <bits/stdc++.h>
using namespace std;
int N, K, M, Q;
int Sq=400;
int B[400][1000], sz[400];
int D[400][1000], C[400][1000];
int A[150505], T[150505];
void calc(int t){
    if (!sz[t]) return;
    int k=sz[t]-1;
    for (int i=sz[t]-1; i>=0; i--){
        while (B[t][i] + K < B[t][k]) k--;
        if (k == sz[t]-1) D[t][i] = 1, C[t][i] = B[t][i] + K;
        else D[t][i] = D[t][k+1] + 1, C[t][i] = C[t][k+1];
    }
}
void init(int n, int l, int X[])
{
    N=n, K=l;
    M = (N+Sq-1)/Sq;
    for (int i=0; i<N; i++){
        B[i/Sq][sz[i/Sq]++] = X[i];
        if (!Q) A[i] = X[i];
    }
    for (int i=0; i<M; i++) calc(i);
}
 
 
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Compilation message (stderr)

elephants.cpp: In function 'void del(int)':
elephants.cpp:33:12: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized]
     int t, k;
            ^

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