Submission #2857522
Source Code Expand
#include <bits/stdc++.h>
using namespace std;
#define NDEBUG
#ifdef DEBUG
#include "../cout11.h"
#undef NDEBUG
#endif
#include <cassert>
typedef long long ll;
typedef long double Double;
typedef unsigned long long ull;
typedef pair<int,int> ii;
typedef pair<ll,ll> llll;
typedef pair<double,double> dd;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<ll> vll;
typedef vector<string> vs;
typedef vector<double> vd;
typedef vector<long double> vD;
#define sz(a) int((a).size())
#define pb push_back
#define FOR(var,from,to) for(int var=(from);var<=(to);++var)
#define rep(var,n) for(int var=0;var<(n);++var)
#define rep1(var,n) for(int var=1;var<=(n);++var)
#define repC2(vari,varj,n) for(int vari=0;vari<(n)-1;++vari)for(int varj=vari+1;varj<(n);++varj)
#define ALL(c) (c).begin(),(c).end()
#define RALL(c) (c).rbegin(),(c).rend()
#define tr(i,c) for(auto i=(c).begin(); i!=(c).end(); ++i)
#define found(s,e) ((s).find(e)!=(s).end())
#define mset(arr,val) memset(arr,val,sizeof(arr))
#define mid(x,y) ((x)+((y)-(x))/2)
#define IN(x,a,b) ((a)<=(x)&&(x)<=(b))
#define cons make_pair
ll gcd(ll a, ll b) { while(a) swap(a, b%=a); return b; }
const ll MOD=1000000007LL;
ll ADD(ll x, ll y) { return (x+y) % MOD; }
ll SUB(ll x, ll y) { return (x-y+MOD) % MOD; }
ll MUL(ll x, ll y) { return x*y % MOD; }
ll POW(ll x, ll e) { ll v=1; for(; e; x=MUL(x,x), e>>=1) if (e&1) v = MUL(v,x); return v; }
ll DIV(ll x, ll y) { /*assert(y%MOD!=0);*/ return MUL(x, POW(y, MOD-2)); }
// ll comb(ll n, ll k) { ll v=1; for(ll i=1; i<=k; i++) v = DIV(MUL(v, n-i+1),i); return v; }
//
#define INTSPACE 12
char _buf[INTSPACE*1000000 + 3];
int loadint() {
if (fgets(_buf, INTSPACE+3, stdin)==NULL) return 0;
return atoi(_buf);
}
int loadvec(vector<int>& v, int N=-1) {
if (N == -1) {
N = loadint();
if (N==0) return 0;
}
int bufsize = INTSPACE*N + 3;
if (fgets(_buf, bufsize, stdin)==NULL) return 0;
v.resize(N);
int i=0;
bool last = false;
for (char *p=&_buf[0]; ;) {
char *q = p;
while (*q > ' ') ++q;
if (*q == 0x0D || *q == 0x0A) last = true;
*q = 0;
v[i++] = atoi(p);
if (last || i == N) break;
p = q+1;
}
// assert(i <= N);
return i;
}
void read_cr() {
fgets(_buf, 256, stdin);
}
int solve(int N, vi& a) {
sort(ALL(a));
vector<ll> ac(N+1);
ac[0] = 0;
rep(i,N) ac[i+1] = ac[i] + a[i];
int cnt = 1;
int bmin = N-1;
for (int i=N-1; i>0; --i) {
ll b = a[i];
ll s = ac[i] - ac[0];
if (s*2 >= b) { ++cnt; bmin = i-1; }
else break;
}
return cnt;
}
int main() {
vi a;
int N = loadvec(a);
cout << solve(N,a) << endl;
// cout << (solve(N,a) ? "Yes":"No") << endl;
return 0;
}
Submission Info
Submission Time
2018-07-17 01:59:43+0900
Task
B - Colorful Creatures
User
naoya_t
Language
C++14 (GCC 5.4.1)
Score
400
Code Size
2981 Byte
Status
AC
Exec Time
12 ms
Memory
2432 KB
Compile Error
./Main.cpp: In function ‘void read_cr()’:
./Main.cpp:87:28: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
fgets(_buf, 256, stdin);
^
Judge Result
Set Name
Sample
All
Score / Max Score
0 / 0
400 / 400
Status
Set Name
Test Cases
Sample
sample1.txt, sample2.txt, sample3.txt
All
sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in2.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt
Case Name
Status
Exec Time
Memory
in1.txt
AC
12 ms
2432 KB
in10.txt
AC
5 ms
1024 KB
in11.txt
AC
12 ms
2176 KB
in12.txt
AC
8 ms
2432 KB
in13.txt
AC
8 ms
2432 KB
in2.txt
AC
12 ms
2304 KB
in3.txt
AC
12 ms
2432 KB
in4.txt
AC
12 ms
2432 KB
in5.txt
AC
5 ms
1024 KB
in6.txt
AC
10 ms
1920 KB
in7.txt
AC
12 ms
2304 KB
in8.txt
AC
10 ms
1920 KB
in9.txt
AC
2 ms
512 KB
sample1.txt
AC
1 ms
256 KB
sample2.txt
AC
1 ms
256 KB
sample3.txt
AC
1 ms
256 KB