oj.uz

Submission #773727

# Submission time Handle Problem Language Result Execution time Memory
773727 2023-07-05T08:00:27 Z CyberCow Remittance (JOI19_remittance) C++17
0 / 100
 325 ms 340 KB 
//#include <bits/stdc++.h>
#include <random>
#include <algorithm>
#include <bitset>
#include <chrono>
#include <cmath>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <queue>
#include <set>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include <chrono>
#define fr first
#define sc second
#define ad push_back
using namespace std;
using ll = long long;
mt19937 rnd(348502);
const int N = 1000005;
ll a[N], b[N], kop[N];

void solve()
{
    ll n, i, j, x, y, gg = 0, gg1 = 0, gum1 = 0, gum = 0;
    cin >> n;
    for (i = 1; i <= n; i++)
    {
        cin >> a[i] >> b[i];
        gg += a[i];
        gg1 += b[i];
    }
    for (int h = 0; h < n - 1; h++)
    {
        for ( i = 1; i <= n; i++)
        {
            a[i] = kop[i];
        }
        int st = 0, qan = 0;
        gum = gg;
        gum1 = gg1;
        i = 0;
        while (gum >= gum1)
        {
            qan++;
            i++;
            if (i == n + 1)
            {
                if (st == n)
                    break;
                i = 1;
                st = 0;
            }
            if (i < n)
            {
                if (a[i] > b[i])
                {
                    if (a[i] - (a[i] - b[i] + 1) / 2 * 2 >= 0)
                    {
                        gum -= (a[i] - b[i] + 1) / 2 * 2;
                        gum += (a[i] - b[i] + 1) / 2;
                        a[i + 1] += (a[i] - b[i] + 1) / 2;
                        a[i] -= (a[i] - b[i] + 1) / 2 * 2;
                    }
                }
            }
            else
            {
                if (a[i] > b[i])
                {
                    if (a[i] - (a[i] - b[i] + 1) / 2 * 2 >= 0)
                    {
                        gum -= (a[i] - b[i] + 1) / 2 * 2;
                        gum += (a[i] - b[i] + 1) / 2;
                        a[1] += (a[i] - b[i] + 1) / 2;
                        a[i] -= (a[i] - b[i] + 1) / 2 * 2;
                    }
                }
            }
            if (a[i] == b[i])
                st++;
            if (qan >= 100000000)
                break;
        }
        if (gum == gum1)
        {
            cout << "Yes";
            return;
        }
        gg -= kop[i] / 2 * 2;
        gg1 += kop[i] / 2;
        kop[i + 1] += kop[i] / 2;
        kop[i] -= kop[i] / 2 * 2;
    }
    cout << "No";
}


int main() {    
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    ll tt = 1;
    //cin >> tt;
    while (tt--) {
        solve();
    }
    return 0;
}

Compilation message

remittance.cpp: In function 'void solve()':
remittance.cpp:33:14: warning: unused variable 'j' [-Wunused-variable]
   33 |     ll n, i, j, x, y, gg = 0, gg1 = 0, gum1 = 0, gum = 0;
      |              ^
remittance.cpp:33:17: warning: unused variable 'x' [-Wunused-variable]
   33 |     ll n, i, j, x, y, gg = 0, gg1 = 0, gum1 = 0, gum = 0;
      |                 ^
remittance.cpp:33:20: warning: unused variable 'y' [-Wunused-variable]
   33 |     ll n, i, j, x, y, gg = 0, gg1 = 0, gum1 = 0, gum = 0;
      |                    ^

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 138 ms 340 KB Output is correct
3 Correct 131 ms 324 KB Output is correct
4 Incorrect 325 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 138 ms 340 KB Output is correct
3 Correct 131 ms 324 KB Output is correct
4 Incorrect 325 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 138 ms 340 KB Output is correct
3 Correct 131 ms 324 KB Output is correct
4 Incorrect 325 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -