Submission #79777

#	Time	Username	Problem	Language	Result	Execution time	Memory
79777		psmao	Job Scheduling (CEOI12_jobs)	C++14	45 / 100	350 ms	13080 KiB

jobs

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

#define fo(i,s,t) for(int i = s; i <= t; ++ i)
#define fd(i,s,t) for(int i = s; i >= t; -- i)
#define bf(i,s) for(int i = head[s]; i; i = e[i].next)
#define mp make_pair
#define fi first
#define se second
#define pii pair<int,int>
#define pb push_back
#define VI vector<int>
#define sf scanf
#define pf printf
#define fp freopen
#define SZ(x) ((int)(x).size())
#ifdef MPS
#define D(x...) printf(x)
#else
#define D(x...)
#endif
typedef long long ll;
typedef double db;
typedef unsigned long long ull;
const int inf = 1<<30;
const ll INF = 1ll<<60;
const db Inf = 1e20;
const db eps = 1e-9;

void gmax(int &a,int b){a = (a > b ? a : b);}
void gmin(int &a,int b){a = (a < b ? a : b);}

const int maxn = 1000050;

int n, d, m;
pair<int,int> a[maxn];

bool jud(int x)
{
	int j = 1, tmp = 0;
	for(int i = 1; i <= n; ++ i)
	{
		if(j > m) break;
		if(a[j].fi + d < i) return false;
		if(a[j].fi > i) continue;
		tmp = x;
		while(j <= m && a[j].fi + d >= i && tmp > 0) {-- tmp; ++ j;}
	}
	return (j > m);
}
void go(int x)
{
	int j = 1, tmp = 0;
	for(int i = 1; i <= n; ++ i)
	{
		tmp = x;
		if(a[j].fi > i) continue;
		while(j <= m && a[j].fi + d >= i && tmp > 0) {pf("%d ",a[j].se); -- tmp; ++ j;}
		pf("0\n");
	}	
}
int main()
{
	#ifdef MPS
		fp("1.in","r",stdin);
		fp("1.out","w",stdout);
		db mps = clock();
	#endif
	sf("%d%d%d",&n,&d,&m);
	fo(i,1,m) sf("%d",&a[i].fi), a[i].se = i;
	sort(a+1,a+m+1);
	int l = 1, r = m, mid, ans = -1;
	while(l <= r)
	{
		mid = (l + r) >> 1;
		if(jud(mid)) ans = mid, r = mid - 1;
		else l = mid + 1;
	}
	pf("%d\n",ans);
	go(mid);
	#ifdef MPS
		pf("Time Elapsed: %.3fms\n",clock()-mps);
	#endif
	return 0;
}

Compilation message (stderr)

jobs.cpp: In function 'int main()':
jobs.cpp:69:4: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  sf("%d%d%d",&n,&d,&m);
    ^
jobs.cpp:70:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  fo(i,1,m) sf("%d",&a[i].fi), a[i].se = i;
                             ^
jobs.cpp:80:4: warning: 'mid' may be used uninitialized in this function [-Wmaybe-uninitialized]
  go(mid);
  ~~^~~~~

• Subtask 1: 45 / 100