oj.uz

Submission #496086

# Submission time Handle Problem Language Result Execution time Memory
496086 2021-12-20T15:42:39 Z khoabright Remittance (JOI19_remittance) C++17
0 / 100
 1 ms 204 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define ll long long
#define pii pair<int, int>
#define ff first
#define ss second
#define pb push_back
#define rep(i, a, b) for (int i = (int)a; i <= (int)b; ++i)
#define rep1(i, a, b) for (int i = (int)a; i >= (int)b; --i)
#define all(x) x.begin(), x.end()
#define sp(x) setprecision(x) << fixed
typedef long double db;

const int N = 1e6 + 5;
const int inf = 1e9;

bool solve() {
    int n; cin >> n;
    vector<int> a(n + 1), b(n + 1);
    rep(i, 1, n) cin >> a[i] >> b[i];

    bool change = 1;
    while (change) {
        change = 0;
//        rep(i, 1, n) cout << a[i] << ' ' << b[i] << '\n';
//        cout << '\n';
        rep(i, 1, n) {
            int nx = (i == n) ? 1 : i + 1;
            int add = (a[i] - b[i]) / 2;
            if (add > 0) {
                 //   cout<<"i,add="<<i<<' '<<add<<'\n';
                a[nx] += add;
                a[i] -= 2 * add;
                change = 1;
            }
        }
    }

    rep(i, 1, n) if (a[i] != b[i]) return false;
    return true;
}

main() {
    ios_base::sync_with_stdio(0); cin.tie(0);

    cout << (solve() ? "Yes" : "No");
}

Compilation message

remittance.cpp:45:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   45 | main() {
      | ^~~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Incorrect 0 ms 204 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Incorrect 0 ms 204 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Incorrect 0 ms 204 KB Output isn't correct
9 Halted 0 ms 0 KB -