Submission #95555

#	Time	Username	Problem	Language	Result	Execution time	Memory
95555		hihi	Gap (APIO16_gap)	C++11	100 / 100	66 ms	4212 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"
using namespace std;

long long findGap(int T, int N)
{
    long long min, maxi;
    if (T == 1) {
        vector<long long> a;
        MinMax(0, (long long)1012345678901234567, &min, &maxi);
        for (int i = 0; i < (N-1)/2; i++) {
            a.push_back(min);
            a.push_back(maxi);
            long long temp = min+1;
            long long temp2 = maxi-1;
            MinMax(temp, temp2, &min, &maxi);
        }
        if (N%2==0) {
            a.push_back(min);
            a.push_back(maxi);
        }
        else {
            a.push_back(min);
        }
        sort(a.begin(), a.end());
        long long gap = 0;
        for (int i = 1; i < a.size(); i++) {
            gap = max(a[i] - a[i-1], gap);
        }
        return gap;
    }
	else {
	    MinMax(0, (long long)1012345678901234567, &min, &maxi);
	    long long gap = 0;
	    vector<long long> a;
	    long long dis = ceil((maxi - min )/((long double)N-1) + 1);
	    long long min2 = min, max2 = (min + dis);
	    for (int i = 0; i < N-1; i++) {
	        MinMax(min2, max2, &min, &maxi);
	        if (min == maxi && min != -1) {
	            a.push_back(min);
	        }
	        else if (min != maxi) {
	            a.push_back(min);
	            a.push_back(maxi);
	        }
	        min2 = max2+1;
	        max2 += dis;
	    }
	    for (int i = 1; i < a.size(); i++) {
            gap = max(a[i] - a[i-1], gap);
        }
        return gap;
	}
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:27:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 1; i < a.size(); i++) {
                         ~~^~~~~~~~~~
gap.cpp:50:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      for (int i = 1; i < a.size(); i++) {
                      ~~^~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 70 / 70