제출 #1113995

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1113995		ntdaccode	Cloud Computing (CEOI18_clo)	C++17	0 / 100	162 ms	262144 KiB

clo

#include<bits/stdc++.h>
#define fori(i,a,b) for(int i = a;i <= b; i++)
#define int long long

using namespace std;

typedef pair<int,int> ii;
typedef tuple<int,int,int> tp;

const int M = 1e5 + 10;
const int N = 2e3 + 10;
const int mod = 1e9 + 7;

int n , m ;
struct node
{
  int c,f,v;
}buy[N],sell[N];

bool cmp(const node & a, const node & b) {
  return a.f < b.f;
}

vector<int> f[N];
int kq = 0;
int g[M];
int upper[N];

int32_t main()
{
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  if(fopen("1.inp","r"))
  {
    freopen("1.inp","r",stdin);
    freopen("1.out","w",stdout);
  }
  #define task ""
  if(fopen(task".inp","r"))
  {
    freopen(task".inp","r",stdin);
    freopen(task".out","w",stdout);
  }
  cin >> n ;
  for(int i = 1;i <= n ; i++) cin >> buy[i].c >> buy[i].f >> buy[i].v;
  cin >> m;
  for(int i = 1;i <= m ; i++) cin >> sell[i].c >> sell[i].f >> sell[i].v;
  sort(buy + 1, buy + n + 1,cmp);
  sort(sell + 1,sell + m + 1,cmp);


  int j = n,sum = 0 ,idx = 0;
  for(int i = m; i != 0; i--) {
    while(sell[i].f <= buy[j].f && j != 0) sum += buy[j].c,j--;
    f[i].assign(sum + 1,-1e15);
    f[i][0] = 0;
    upper[i] = j + 1;
    if(upper[i] != n + 1 && idx == 0) idx = i;
  }
  j = n ,sum = 0;
  for(int i = m;i != 0; i--) {
    int lim = sum - 2;
    for(int e = 0;e <= lim; e++) f[i][e] = max(f[i][e],f[i+1][e]);

    while(upper[i] <= j) {
        sum += buy[j].c;
      for(int e = sum ; e >=buy[j].c ; e--) {
          f[i][e] = max(f[i][e],f[i][e - buy[j].c] - buy[j].v);
      }
      j--;
    }
  //  for(int e = 0;e <= f[i].size() - 1;e++) cout << f[i][e] << " ";
   // cout << endl;
      for(int e = sell[i].c;e <= f[i].size() - 1; e++) {
        f[i][e - sell[i].c] = max(f[i][e - sell[i].c],f[i][e] + sell[i].v);
        kq = max(f[i][e - sell[i].c],kq);
      }
  }
  cout << kq;
}

컴파일 시 표준 에러 (stderr) 메시지

clo.cpp: In function 'int32_t main()':
clo.cpp:75:31: 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]
   75 |       for(int e = sell[i].c;e <= f[i].size() - 1; e++) {
      |                             ~~^~~~~~~~~~~~~~~~~~
clo.cpp:36:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     freopen("1.inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~
clo.cpp:37:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |     freopen("1.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~
clo.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen(task".inp","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
clo.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen(task".out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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