Submission #1054321

#	Time	Username	Problem	Language	Result	Execution time	Memory
1054321		cpdreamer	Financial Report (JOI21_financial)	C++14	14 / 100	4089 ms	2804 KiB

Main

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <utility>
#define V vector
#define P pair
#define S second
#define F first
#define pb push_back
#define all(v) v.begin(),v.end()
typedef long long ll;
using namespace __gnu_pbds;
using namespace std;
typedef tree<int,null_type,less<int>,rb_tree_tag,
        tree_order_statistics_node_update> indexed_set;
static int called = 0;const long long MOD = 1e9+7; // 1e9 + 7

void file(){
    freopen("input.txt.txt","r",stdin);
    freopen("output.txt.txt","w",stdout);
}
void file(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}
int dp[(int)7001];
int max_value[(int)7001];
void solve(){
    int n;
    cin>>n;
    int d;
    cin>>d;
    int ans=1;
    int A[n];
    for(int i=0;i<n;i++)
        cin>>A[i];
    for(int mask=1;mask<(1<<(n-1));mask++){
        bool B[n];
        memset(B,false,sizeof(B));
        int max_d=-1;
        for(int i=0;i<n-1;i++){
            if(((1<<i)&mask)!=0)
                B[i]=true;
        }
        B[n-1]=true;
        int c=0;
        V<int>vp;
        bool valid=true;
        for(int i=0;i<n;i++){
            if(B[i]) {
                vp.pb(i);
                if (A[i] > max_d) {
                    c++;
                    max_d = A[i];
                }
            }
        }
        for(int i=1;i<vp.size();i++){
            if(vp[i]-vp[i-1]>d)
                valid=false;
        }
        if(valid)
            ans=max(ans,c);
    }
    cout<<ans<<endl;
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    //file();
    solve();
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void solve()':
Main.cpp:57:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         for(int i=1;i<vp.size();i++){
      |                     ~^~~~~~~~~~
Main.cpp: In function 'void file()':
Main.cpp:18:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |     freopen("input.txt.txt","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:19:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |     freopen("output.txt.txt","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp: In function 'void file(std::string)':
Main.cpp:22:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:23:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp: At global scope:
Main.cpp:15:12: warning: 'called' defined but not used [-Wunused-variable]
   15 | static int called = 0;const long long MOD = 1e9+7; // 1e9 + 7
      |            ^~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 0 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 12
• Subtask 5: 0 / 5
• Subtask 6: 0 / 35