Submission #448792

#	Time	Username	Problem	Language	Result	Execution time	Memory
448792		Yuisuyuno	Cloud Computing (CEOI18_clo)	C++14	100 / 100	2879 ms	5408 KiB

clo

#include <bits/stdc++.h>
#define sz(x) int(x.size())
#define all(x) x.begin(),x.end()
#define reset(x) memset(x, 0,sizeof(x))
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define N 2005
#define remain(x) if (x > MOD) x -= MOD
#define ii pair<int, int>
#define iii pair<int, ii>
#define iiii pair< ii , ii >
#define viiii vector< iiii >
#define vi vector<int>
#define vii vector< ii >
#define bit(x, i) (((x) >> (i)) & 1)
#define Task "test"
#define int long long

using namespace std;

typedef long double ld;
const int inf = 1e12;
const int minf = -1e10;

int n, m;
vector<iii> a;

void readfile()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);cout.tie(0);
    if (fopen(Task".inp","r"))
    {
        freopen(Task".inp","r",stdin);
        //freopen(Task".out","w",stdout);
    }
    cin >> n;
    for(int i=1; i<=n; i++){
        int cnt, fre, cost;
        cin >> cnt >> fre >> cost;
        cost*=-1;
        a.pb(iii(fre,ii(cnt,cost)));
    }
    cin >> m;
    for(int i=1; i<=m; i++){
        int cnt, fre, cost;
        cin >> cnt >> fre >> cost;
        cnt*=-1;
        a.pb({fre,{cnt,cost}});
    }
}

void proc()
{
    sort(a.rbegin(),a.rend());
    vector<int> dp{0};
    for(int i=0; i<a.size(); i++){
        vector<int> dp2 = dp;
        for(int j=0; j<dp.size(); j++){
            int cnt = j + a[i].se.fi;
            int cost = dp[j] + a[i].se.se;
            if (cnt >= 0){
                while (dp2.size() <= cnt) dp2.pb(minf*2000);
                dp2[cnt] = max(dp2[cnt],cost);
            }
        }
        dp = dp2;
    }
    int ans = 0;
    for(int i=0; i<dp.size(); i++) ans = max(ans,dp[i]);
    cout << ans;
}

signed main()
{
    readfile();
    proc();
    return 0;
}

Compilation message (stderr)

clo.cpp: In function 'void proc()':
clo.cpp:59:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |     for(int i=0; i<a.size(); i++){
      |                  ~^~~~~~~~~
clo.cpp:61:23: 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]
   61 |         for(int j=0; j<dp.size(); j++){
      |                      ~^~~~~~~~~~
clo.cpp:65:35: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   65 |                 while (dp2.size() <= cnt) dp2.pb(minf*2000);
      |                        ~~~~~~~~~~~^~~~~~
clo.cpp:72:19: 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]
   72 |     for(int i=0; i<dp.size(); i++) ans = max(ans,dp[i]);
      |                  ~^~~~~~~~~~
clo.cpp: In function 'void readfile()':
clo.cpp:36:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |         freopen(Task".inp","r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 18 / 18
• Subtask 5: 18 / 18
• Subtask 6: 10 / 10