oj.uz

Submission #635349

# Submission time Handle Problem Language Result Execution time Memory
635349 2022-08-26T06:31:21 Z radal Remittance (JOI19_remittance) C++17
15 / 100
 529 ms 344 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;
    }
    rep(i,0,100000000) if (check(i) && check2()){
        cout << "Yes";
        return 0;
    }
    cout << "No";
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 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 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 182 ms 340 KB Output is correct
13 Correct 180 ms 340 KB Output is correct
14 Correct 186 ms 344 KB Output is correct
15 Correct 182 ms 340 KB Output is correct
16 Correct 182 ms 340 KB Output is correct
17 Correct 186 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 190 ms 340 KB Output is correct
20 Correct 181 ms 340 KB Output is correct
21 Correct 197 ms 340 KB Output is correct
22 Correct 185 ms 340 KB Output is correct
23 Correct 182 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 185 ms 340 KB Output is correct
26 Correct 183 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 340 KB Output is correct
30 Correct 188 ms 340 KB Output is correct
31 Correct 202 ms 340 KB Output is correct
32 Correct 0 ms 340 KB Output is correct

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 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 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 182 ms 340 KB Output is correct
13 Correct 180 ms 340 KB Output is correct
14 Correct 186 ms 344 KB Output is correct
15 Correct 182 ms 340 KB Output is correct
16 Correct 182 ms 340 KB Output is correct
17 Correct 186 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 190 ms 340 KB Output is correct
20 Correct 181 ms 340 KB Output is correct
21 Correct 197 ms 340 KB Output is correct
22 Correct 185 ms 340 KB Output is correct
23 Correct 182 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 185 ms 340 KB Output is correct
26 Correct 183 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 340 KB Output is correct
30 Correct 188 ms 340 KB Output is correct
31 Correct 202 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 529 ms 340 KB Output isn't correct
37 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 1 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 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 182 ms 340 KB Output is correct
13 Correct 180 ms 340 KB Output is correct
14 Correct 186 ms 344 KB Output is correct
15 Correct 182 ms 340 KB Output is correct
16 Correct 182 ms 340 KB Output is correct
17 Correct 186 ms 340 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 190 ms 340 KB Output is correct
20 Correct 181 ms 340 KB Output is correct
21 Correct 197 ms 340 KB Output is correct
22 Correct 185 ms 340 KB Output is correct
23 Correct 182 ms 340 KB Output is correct
24 Correct 0 ms 340 KB Output is correct
25 Correct 185 ms 340 KB Output is correct
26 Correct 183 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 340 KB Output is correct
30 Correct 188 ms 340 KB Output is correct
31 Correct 202 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 529 ms 340 KB Output isn't correct
37 Halted 0 ms 0 KB -