Submission #581033

#	Time	Username	Problem	Language	Result	Execution time	Memory
581033		maskrio	A Huge Tower (CEOI10_tower)	C++17	20 / 100	1095 ms	262144 KiB

tower

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <sstream>
#include <queue>
#include <deque>
#include <bitset>
#include <iterator>
#include <list>
#include <stack>
#include <map>
#include <set>
#include <functional>
#include <numeric>
#include <utility>
#include <limits>
#include <time.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <iomanip>

using namespace std;


#define ll long long
#define deb(x) cout << #x << " = " << x << endl;
#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define mp make_pair
#define fo(i, j) for(i=0;i<j;i++)
#define Fo(i, k, n) for(i=k;k<n?i<n:i>n;k<n?i++:i--)
#define MOD ((int)1e9+7)
#define imax INT_MAX
#define imin INT_MIN
#define PI 3.1415926535897932384626433832795
#define tr(it, x) for(auto it = x.begin(); it != x.end(); it++)
#define trr(it, x) for(auto it = x.rbegin(); it != x.rend(); it+)
#define sortall(x) sort(all(x))

typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<string> VS;
typedef vector<PII> VII;
typedef vector<VI> VVI;
typedef map<int,int> MPII;

template<typename T, typename U> inline void amin(T &x, U y) { if(y < x) x = y; }
template<typename T, typename U> inline void amax(T &x, U y) { if(x < y) x = y; }

void WVI(VI ar){
    int i;
    fo(i, ar.size()){
        cout << ar[i] << " ";
    }cout << endl;
}

void setIO(string name = ""){
    ios_base::sync_with_stdio(0); cin.tie(0);
    if(name.size()>0){
        freopen((name + ".in").c_str(), "r", stdin);
        freopen((name + ".out").c_str(), "w", stdout);
    }
}

const int mxN = 1e5+5;
const int INF = 1e9+50;
//**************************************************************


int n,d;
VI ar;

ll ptry(ll x, vector<bool> used){
    bool cek = true;
    ll ret = 0;
    for(int i=0;i<n;i++) {
        if(used[i]) continue;
        cek = false;
        //cout << ar[i] << " " << x << endl;
        if(ar[i] > x + d) continue;
        
        used[i] = true;
        ret += ptry(ar[i], used) % MOD;
        used[i] = false;
        
    }
    if(cek) {
        return 1;
    }

    return ret%MOD;

}
void solve(){
    cin >> n >> d;
    vector<bool> used(n,false);
    ar.resize(n);

    for(int i=0;i<n;i++) cin >> ar[i];

    sort(ar.begin(), ar.end(), greater<int>());

    //for(int a : used) cout << a << " "; cout << endl;

    ll a = ptry(1e11, used);
    cout << a;
    
}

int main(){

    string name = "";
    setIO(name);
    int test_cases = 1;
    //cin >> test_cases;
    while(test_cases--) {
        solve();
    }

    return 0; 
}

Compilation message (stderr)

tower.cpp: In function 'void WVI(VI)':
tower.cpp:38:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 | #define fo(i, j) for(i=0;i<j;i++)
......
   60 |     fo(i, ar.size()){
      |        ~~~~~~~~~~~~        
tower.cpp:60:5: note: in expansion of macro 'fo'
   60 |     fo(i, ar.size()){
      |     ^~
tower.cpp: In function 'void setIO(std::string)':
tower.cpp:68:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   68 |         freopen((name + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tower.cpp:69:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |         freopen((name + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5
• Subtask 13: 0 / 5
• Subtask 14: 0 / 5
• Subtask 15: 0 / 5
• Subtask 16: 0 / 5
• Subtask 17: 0 / 5
• Subtask 18: 0 / 5
• Subtask 19: 0 / 5
• Subtask 20: 0 / 5