Submission #1352908

#	Time	Username	Problem	Language	Result	Execution time	Memory
1352908		bozho	Gap (APIO16_gap)	C++20	Compilation error	0 ms	0 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"
#define endl '\n'
using namespace std;

const int MAX = (2e5) + 5;

long long a[MAX];

long long findGap(int t, int n)
{
    if (t == 1)
    {
        long long l = 0, r = (1e18) + 1, s, t;
        for (int i = 1; i <= (n + 1) / 2; i++)
        {
            MinMax(l, r, &s, &t);
            a[i] = s;
            a[n - i + 1] = t;
            l = s + 1;
            r = t - 1;
        }
        long long ans = 0;
        for (int i = 2; i <= n; i++)
            ans = max(ans, a[i] - a[i - 1]);
        return ans;
    }
    long long l = 0, r = (1e18) + 1, lr = -1, s, t;
    MinMax(l, r, &s, &t);
    long long x = (t - s + n - 2) / (n - 1);
    long long ans = x;
    for (long long i = s; i < t; i += x + 1)
    {
        if (i + x >= t)
            MinMax(i, t, &l, &r);
        else
            MinMax(i, i + x, &l, &r);
        if (l != -1 && lr != -1)
            ans = max(ans, l - lr);
        lr = r;
    }
    return ans;
}

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:28:50: error: declaration of 'long long int t' shadows a parameter
   28 |     long long l = 0, r = (1e18) + 1, lr = -1, s, t;
      |                                                  ^
gap.cpp:10:23: note: 'int t' previously declared here
   10 | long long findGap(int t, int n)
      |                   ~~~~^