제출 #1044609

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1044609		YassineBenYounes	Vision Program (IOI19_vision)	C++17	0 / 100	1 ms	860 KiB

vision

#include<bits/stdc++.h>
#include<chrono>
#include<random>
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef double db;
ll gcd(ll a , ll b) {return b ? gcd(b , a % b) : a ;} // greatest common divisor (PGCD)
ll lcm(ll a , ll b) {return (a * b) / gcd(a , b);} // least common multiple (PPCM)
int dx[8] = {1, 0, 0, -1, 1, 1, -1, -1};
int dy[8] = {0, 1, -1, 0, 1, -1, -1, 1};
#define endl "\n"
#define ss second
#define ff first
#define all(x) (x).begin() , (x).end()
#define pb push_back
#define vi vector<int>
#define vii vector<pair<int,int>>
#define vl vector<ll>
#define vll vector<pair<ll,ll>>
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pdd  pair<double,double>
#define vdd  vector<pdd>
#define speed ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define pbds tree<pii, null_type, less<pii>,rb_tree_tag, tree_order_statistics_node_update>
using namespace __gnu_pbds;
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
////////////////////Only Clear Code//////////////////////////
 
void usaco_problem(){
    freopen("milkvisits.in", "r", stdin);
    freopen("milkvisits.out", "w", stdout);
}
 
void init(){
    #ifndef ONLINE_JUDGE
 
freopen("input.txt", "r", stdin);
 
freopen("output.txt", "w", stdout);
 
#endif // ONLINE_JUDGE
}
const int mx = 3e5+5;
const int LOG = 22;
const int inf = 1e9;
const ll mod = 1e9+7;
const int sq = 320;

#include "vision.h"
int n, m, k;

void construct_network(int H, int W, int K) {
    n=H,m=W,k=K;
    vi rows;
    for(int i = 0; i < n;i++){
        vi v;
        for(int j = 0;j < m;j++){
            v.pb(i*m+j);
        }
        int x = add_or(v);
        if(x == 1){
             rows.pb(i);
        }
    }
    if(rows.size() == 1){
        int x = rows.back();
        rows.pb(x);
    }
    set<pii> s;
    for(int i : rows){
        for(int j = 0;j < m;j++){
            int x = add_and({i*m+j});
            if(x == 1)s.insert({i, j});
        }
    }
    pii a = *s.begin();
    pii b = *s.rbegin();
    int dis = abs(a.ff - b.ff) + abs(a.ss - b.ss);
    if(dis == k){
        int x = add_and({a.ff*m+a.ss});
    }
    else{
        int x = add_xor({a.ff*m+a.ss, b.ff*m+b.ss});
    }
}
 
/*
    NEVER GIVE UP!
    DOING SMTHNG IS BETTER THAN DOING NTHNG!!!
    Your Guide when stuck:
    - Continue keyword only after reading the whole input
    - Don't use memset with testcases
    - Check for corner cases(n=1, n=0)
    - Check where you declare n(Be careful of declaring it globally and in main)
*/

컴파일 시 표준 에러 (stderr) 메시지

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:86:13: warning: unused variable 'x' [-Wunused-variable]
   86 |         int x = add_and({a.ff*m+a.ss});
      |             ^
vision.cpp:89:13: warning: unused variable 'x' [-Wunused-variable]
   89 |         int x = add_xor({a.ff*m+a.ss, b.ff*m+b.ss});
      |             ^
vision.cpp: In function 'void usaco_problem()':
vision.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("milkvisits.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vision.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("milkvisits.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vision.cpp: In function 'void init()':
vision.cpp:43:8: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 | freopen("input.txt", "r", stdin);
      | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
vision.cpp:45:8: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 | freopen("output.txt", "w", stdout);
      | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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