oj.uz

답안 #635348

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
635348 2022-08-26T06:30:24 Z radal 송금 (JOI19_remittance) C++17
15 / 100
 267 ms 356 KB 
#include <bits/stdc++.h>
#pragma GCC target("sse,sse2")
#pragma GCC optimize("unroll-loops,O3")
#define rep(i,l,r) for (int i = l; i < r; i++)
#define repr(i,r,l) for (int i = r; i >= l; i--)
#define X first
#define Y second
#define all(x) (x).begin() , (x).end()
#define pb push_back
#define endl '\n'
#define debug(x) cerr << #x << " : " << x << endl;
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pll;
constexpr int N = 1e6+20,mod = 1e9+7,inf = 1e9+10;
inline int mkay(int a,int b){
    if (a+b >= mod) return a+b-mod;
    if (a+b < 0) return a+b+mod;
    return a+b;
}
 
inline int poww(int a,int k){
    if (k < 0) return 0;
    int z = 1;
    while (k){
        if (k&1) z = 1ll*z*a%mod;
        a = 1ll*a*a%mod;
        k /= 2;
    } 
    return z; 
}

int a[N],b[N],n,x[N],j,tmp[N];
ll s,s2;
int nxt(int i){
    return ((i == n-1) ? 0 : i+1);
}

bool check(int val){
    s2 = val;
    if (s2 > s) return 0;
    x[j] = val;
    int cur = j;
    do{
        int k = nxt(cur);
        if  (k == j) break;
        if ((a[cur]-b[cur]+x[cur])%2 || a[cur]-b[cur] < -x[cur]){
            return 0;
        }
        x[k] = (a[cur]-b[cur]+x[cur])/2;
        s2 += x[k];
        if (s2 > s) return 0;
        cur = k;
    }while (1);
    if (s != s2) return 0;
    return 1;
}

bool check2(){
    rep(i,0,n) tmp[i] = a[i];
    while (1){
        bool fl = 0;
        rep(i,0,n) fl |= x[i];
        if (!fl) return 1;
        rep(i,0,n){
            int k = nxt(i);
            if (!x[k] || tmp[i] <= 1) continue;
            fl = 0;
            if (tmp[i] >= 2*x[k]){
                tmp[i] -= 2*x[k];
                tmp[k] += 2*x[k];
                x[k] = 0;
            }
            else{
                int cnt = tmp[i]/2;
                tmp[i] -= 2*cnt;
                x[k] -= cnt;
                tmp[k] += cnt;
            }
        }
        if (fl) return 0;
    }
}
int main(){
    ios_base :: sync_with_stdio(0); cin.tie(0);
    cin >> n;
    int mx = -1;
    rep(i,0,n){
        cin >> a[i] >> b[i];
        s += a[i]-b[i];
        if (a[i]-b[i] > mx){
            j = i;
            mx = a[i]-b[i];
        }
    }
    if (s < 0){
        cout << "No";
        return 0;
    }
    if (check(inf-10) && check2()){
       cout << "Yes";
      return 0;
    }
    rep(i,0,50000000) if (check(i) && check2()){
        cout << "Yes";
        return 0;
    }
    cout << "No";
    return 0;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 110 ms 340 KB Output is correct
13 Correct 106 ms 340 KB Output is correct
14 Correct 127 ms 340 KB Output is correct
15 Correct 109 ms 340 KB Output is correct
16 Correct 108 ms 340 KB Output is correct
17 Correct 117 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 126 ms 340 KB Output is correct
20 Correct 105 ms 340 KB Output is correct
21 Correct 106 ms 340 KB Output is correct
22 Correct 105 ms 340 KB Output is correct
23 Correct 106 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 113 ms 340 KB Output is correct
26 Correct 115 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 356 KB Output is correct
30 Correct 111 ms 340 KB Output is correct
31 Correct 120 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 110 ms 340 KB Output is correct
13 Correct 106 ms 340 KB Output is correct
14 Correct 127 ms 340 KB Output is correct
15 Correct 109 ms 340 KB Output is correct
16 Correct 108 ms 340 KB Output is correct
17 Correct 117 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 126 ms 340 KB Output is correct
20 Correct 105 ms 340 KB Output is correct
21 Correct 106 ms 340 KB Output is correct
22 Correct 105 ms 340 KB Output is correct
23 Correct 106 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 113 ms 340 KB Output is correct
26 Correct 115 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 356 KB Output is correct
30 Correct 111 ms 340 KB Output is correct
31 Correct 120 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Incorrect 267 ms 340 KB Output isn't correct
37 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 110 ms 340 KB Output is correct
13 Correct 106 ms 340 KB Output is correct
14 Correct 127 ms 340 KB Output is correct
15 Correct 109 ms 340 KB Output is correct
16 Correct 108 ms 340 KB Output is correct
17 Correct 117 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 126 ms 340 KB Output is correct
20 Correct 105 ms 340 KB Output is correct
21 Correct 106 ms 340 KB Output is correct
22 Correct 105 ms 340 KB Output is correct
23 Correct 106 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 113 ms 340 KB Output is correct
26 Correct 115 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 0 ms 340 KB Output is correct
29 Correct 0 ms 356 KB Output is correct
30 Correct 111 ms 340 KB Output is correct
31 Correct 120 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct
33 Correct 0 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Incorrect 267 ms 340 KB Output isn't correct
37 Halted 0 ms 0 KB -