제출 #475485

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
475485		NhatMinh0208	Gift (IZhO18_nicegift)	C++14	100 / 100	1394 ms	76780 KiB

nicegift

#ifndef CPL_TEMPLATE
#define CPL_TEMPLATE
/*
	Normie's Template v2.5
	Changes:
    Added warning against using pragmas on USACO.
*/
// Standard library in one include.
#include <bits/stdc++.h>
using namespace std;
 
// ordered_set library.
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set(el) tree<el,null_type,less<el>,rb_tree_tag,tree_order_statistics_node_update>
 
// AtCoder library. (Comment out these two lines if you're not submitting in AtCoder.) (Or if you want to use it in other judges, run expander.py first.)
//#include <atcoder/all>
//using namespace atcoder;

//Pragmas (Comment out these three lines if you're submitting in szkopul or USACO.)
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("Ofast,unroll-loops,tree-vectorize")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
 
//File I/O.
#define FILE_IN "cseq.inp"
#define FILE_OUT "cseq.out"
#define ofile freopen(FILE_IN,"r",stdin);freopen(FILE_OUT,"w",stdout)
 
//Fast I/O.
#define fio ios::sync_with_stdio(0);cin.tie(0)
#define nfio cin.tie(0)
#define endl "\n"
 
//Order checking.
#define ord(a,b,c) ((a>=b)and(b>=c))
 
//min/max redefines, so i dont have to resolve annoying compile errors.
#define min(a,b) (((a)<(b))?(a):(b))
#define max(a,b) (((a)>(b))?(a):(b))

// Fast min/max assigns to use with AVX.
// Requires g++ 9.2.0.
template<typename T>
__attribute__((always_inline)) void chkmin(T& a, const T& b) {
    a=(a<b)?a:b;
}

template<typename T>
__attribute__((always_inline)) void chkmax(T& a, const T& b) {
    a=(a>b)?a:b;
}
 
//Constants.
#define MOD (ll(998244353))
#define MAX 300001
#define mag 320
const long double PI=3.14159265358979;
 
//Pairs and 3-pairs.
#define p1 first
#define p2 second.first
#define p3 second.second
#define fi first
#define se second
#define pii(element_type) pair<element_type,element_type>
#define piii(element_type) pair<element_type,pii(element_type)>
 
//Quick power of 2.
#define pow2(x) (ll(1)<<x)
 
//Short for-loops.
#define ff(i,__,___) for(int i=__;i<=___;i++)
#define rr(i,__,___) for(int i=__;i>=___;i--)
 
//Typedefs.
#define bi BigInt
typedef long long ll;
typedef long double ld;
typedef short sh;

// Binpow and stuff
ll BOW(ll a, ll x, ll p)
{
	if (!x) return 1;
	ll res=BOW(a,x/2,p);
	res*=res;
	res%=p;
	if (x%2) res*=a;
	return res%p;
}
ll INV(ll a, ll p)
{
	return BOW(a,p-2,p);
}
//---------END-------//
#endif
vector<ll> vec;
vector<vector<ll>> vec2;
vector<ll> vec3;
ll n,m,i,j,k,t,t1,u,v,a,b;
ll arr[1000001];
ll summ;
struct cmp {
    ll operator()(int i,int j) const {
        if (arr[i]-arr[j]) return (arr[i]<arr[j]);
        return (i<j);
    }
};
priority_queue<int,vector<int>,cmp> lmao;
int main()
{
	fio;
    cin>>n>>m;
    for (i=1;i<=n;i++) {
        cin>>arr[i];
        summ+=arr[i];
        lmao.push(i);
    }
    lmao.push(0);
    while(true) {
        vec.clear();
        for (i=0;i<m;i++) {
            vec.push_back(lmao.top());
            lmao.pop();
            t++;
            assert(t<=3e6);
        }
        u=arr[vec[m-1]];
        if (arr[lmao.top()]*m>summ) break;
        else u=min(u,(summ-(arr[lmao.top()]*m))/m);
        a=1;
        for (auto g : vec) {
            if (!arr[g]) a=0;
        }
        if (!a) break;
        for (auto g : vec) {
            arr[g]-=u;
            lmao.push(g);
        }
        vec2.push_back(vec);
        vec3.push_back(u);
        summ-=m*u;
    }
    for (i=1;i<=n;i++) if (arr[i]) {
        cout<<"-1";
        return 0;
    }
    cout<<vec2.size()<<endl;
    for (i=0;i<vec2.size();i++) {
        cout<<vec3[i];
        for (auto g : vec2[i]) cout<<' '<<g;
        cout<<endl;
    }

}
// N;

컴파일 시 표준 에러 (stderr) 메시지

nicegift.cpp:23: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
   23 | #pragma comment(linker, "/stack:200000000")
      | 
nicegift.cpp: In function 'int main()':
nicegift.cpp:152:15: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  152 |     for (i=0;i<vec2.size();i++) {
      |              ~^~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 19 / 19
• Subtask 5: 51 / 51