Submission #254926

#	Time	Username	Problem	Language	Result	Execution time	Memory
254926		super_j6	Cop and Robber (BOI14_coprobber)	C++14	Compilation error	0 ms	0 KiB

coprobber

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second

const int mxn = 500;
int n, m, w, h;
int a[mxn][mxn];
int c;

pi f(int x){
	return {x / h, x % h};
}

int ff(pi p){
	return p.f * h + p.s;
}

int start(int N, vector<vector<int>> g){
	n = N;
	for(h = 1; h < n && g[h - 1][h]; h++);
	w = n / h;
	return c = ff({0, 0});
}

int nextMove(int r){
	pi pc = f(c), pr = f(r);
	pr.f -= pc.f, pr.s -= pc.s;
	
	if(abs(pr.f) > abs(pr.s)){
		pc.f += 2 * (pr.f > 0) - 1;
	}else if(abs(pr.s) > abs(pr.f)){
		pc.s += 2 * (pc.s > 0) - 1;
	}
	
	return c = ff(pc);
}

Compilation message (stderr)

/tmp/cczjDK7l.o: In function `main':
grader.cpp:(.text.startup+0x13c): undefined reference to `start(int, bool (*) [500])'
collect2: error: ld returned 1 exit status