Submission #507529

#	Time	Username	Problem	Language	Result	Execution time	Memory
507529		keta_tsimakuridze	Gap (APIO16_gap)	C++14	Compilation error	0 ms	0 KiB

gap

#include "gap.h"
#include <bits/stdc++.h>
#define int long long
using namespace std;
/*
static void my_assert(int k){ if (!k) exit(1); }

static int subtask_num, N;
static long long A[100001];
static long long call_count;

void MinMax(long long s, long long t, long long *mn, long long *mx)
{
	int lo = 1, hi = N, left = N+1, right = 0;
	my_assert(s <= t && mn != NULL && mx != NULL);
	while (lo <= hi){
		int mid = (lo+hi)>>1;
		if (A[mid] >= s) hi = mid - 1, left = mid;
		else lo = mid + 1;
	}
	lo = 1, hi = N;
	while (lo <= hi){
		int mid = (lo+hi)>>1;
		if (A[mid] <= t) lo = mid + 1, right = mid;
		else hi = mid - 1;
	}
	if (left > right) *mn = *mx = -1;
	else{
		*mn = A[left];
		*mx = A[right];
	}
	if (subtask_num == 1) call_count++;
	else if (subtask_num == 2) call_count += right-left+2;
}*/
long long findGap(int T, int n)
{
	int L = 0, R = 1e18;
	if(T == 1) {
		vector<int> p, s;
		
		while(L <= R) {
			int mn = 0, mx = 0;
			MinMax(L, R, &mn, &mx);
			if(mn == -1) break;
			p.push_back(mn); s.push_back(mx);
			L = mn + 1; R = mx - 1;
		}
		for(int j = (int)s.size() - 1; j >= 0; j--) p.push_back(s[j]);
		int ans = 0;
		for(int j = 1; j < p.size(); j++) ans = max(ans, p[j] - p[j - 1]);
		return ans;
	}
	else if(T == 2){
		int mn = 0, mx = 0, Mx = 0;
		MinMax(L, R, &mn, &mx); Mx = mx;
		int x = (mx  - mn + n - 1) / n, ans = x;
		int last = mn, cur = mn + 1;
		while(cur <= Mx) {
			MinMax(cur, cur + x, &mn, &mx);
			ans = max(ans, mn - last);
			if(mx != -1) last = mx;
			cur += x + 1;
		}
		return ans;
	}
}
/*
 main()
{
	FILE *in = stdin, *out = stdout;
	my_assert(2 == fscanf(in, "%d%d", &subtask_num, &N));
	my_assert(1 <= subtask_num && subtask_num <= 2);
	my_assert(2 <= N && N <= 100000);
	for (int i=1;i<=N;i++) my_assert(1 == fscanf(in, "%lld", A+i));
	for (int i=1;i<N;i++) my_assert(A[i] < A[i+1]);
	fprintf(out, "%lld\n", findGap(subtask_num, N));
	fprintf(out, "%lld\n", call_count);
}
*/

Compilation message (stderr)

gap.cpp: In function 'long long int findGap(long long int, long long int)':
gap.cpp:50:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |   for(int j = 1; j < p.size(); j++) ans = max(ans, p[j] - p[j - 1]);
      |                  ~~^~~~~~~~~~
gap.cpp:66:1: warning: control reaches end of non-void function [-Wreturn-type]
   66 | }
      | ^
/usr/bin/ld: /tmp/cc3AxjW7.o: in function `main':
grader.cpp:(.text.startup+0x1b7): undefined reference to `findGap(int, int)'
collect2: error: ld returned 1 exit status