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답안 #496650

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
496650 2021-12-21T18:22:57 Z ergagan Gift (IZhO18_nicegift) C++17
30 / 100
 2000 ms 29324 KB 
//я так много думал, что опять попал
#include <bits/stdc++.h>
#define all(x) x.begin(),x.end()
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define f first
#define s second
#define left(v) v + v
#define right(v) v + v + 1
#define ub upper_bound
#define lb lower_bound

using namespace std;
typedef long long ll;

//17 SEVENTEEN
const long double Pi = acos(-1.0);
const ll dx[] = {0,0,1,-1};
const ll dy[] = {1,-1,0,0};
const ll N = (ll) 1e6 + 17;
const ll M = (ll) 5e3 + 69;
const ll inf = (ll) 1e14 + 3;
const ll mod = (ll) 1e9 + 7;
ll sq(ll x) { return x * x; }

ll zxc = 1, a[N];

vector<ll> pos;
vector<pair<ll, ll> > v;
vector<vector<ll> > ans;

bool check() {
    for(auto x : v)
        if(x.f) return 1;

    return 0;
}

void solve() {
    ll n, k, mx = 0, sum = 0;
    cin >> n >> k;

    for(ll i = 1; i <= n; i++) {
        cin >> a[i];
        mx = max(mx, a[i]);
        sum += a[i];
    }

    if(sum % k) { cout << "-1\n"; return; }
    sum /= k;
    if(mx > sum) { cout << "-1\n"; return; }

    ll cur = 0;
    pos.pb(0);
    for(ll i = 1; i <= n; i++) {

        if(cur + a[i] > sum)
            v.pb({sum - cur, i}), a[i] = a[i] - sum + cur, pos.pb(v.size()), i--, cur = 0;

        else {
            v.pb({a[i], i}), cur += a[i];
            if(cur == sum && i != n)
                pos.pb(v.size()), cur = 0;
        }
    }

    while(check()) {

        vector<ll> cur;

        ll mn = inf;
        for(ll p : pos)
            mn = min(mn, v[p].f);

        cur.pb(mn);

        for(ll p : pos)
            cur.pb(v[p].s);

        ans.pb(cur);

        for(ll i = 0; i < pos.size(); i++) {
            v[pos[i]].f -= mn;
            if(!v[pos[i]].f) pos[i]++;
        }

    }

    cout << ans.size() << "\n";
    for(auto x : ans) {
        for(ll val : x) cout << val << " ";
        cout << "\n";
    }

}

int main(/*Уверенно*/) {
//ios_base::sync_with_stdio(0);
//    cin.tie(0);
/*
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
*/
//    cin >> zxc;
    while(zxc--) {
        solve();
    }
  	return 0;
}
// さよならさ いかなくちゃ

Compilation message

nicegift.cpp: In function 'void solve()':
nicegift.cpp:84:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   84 |         for(ll i = 0; i < pos.size(); i++) {
      |                       ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 272 KB n=2

Subtask #2
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 272 KB n=2
7 Correct 1 ms 204 KB n=5
8 Correct 0 ms 204 KB n=8
9 Correct 0 ms 204 KB n=14
10 Correct 0 ms 204 KB n=11
11 Correct 372 ms 4356 KB n=50000
12 Correct 286 ms 4156 KB n=50000
13 Correct 0 ms 204 KB n=10
14 Correct 1 ms 332 KB n=685
15 Correct 1 ms 332 KB n=623
16 Correct 1 ms 332 KB n=973

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 272 KB n=2
7 Correct 1 ms 204 KB n=5
8 Correct 0 ms 204 KB n=8
9 Correct 0 ms 204 KB n=14
10 Correct 0 ms 204 KB n=11
11 Correct 372 ms 4356 KB n=50000
12 Correct 286 ms 4156 KB n=50000
13 Correct 0 ms 204 KB n=10
14 Correct 1 ms 332 KB n=685
15 Correct 1 ms 332 KB n=623
16 Correct 1 ms 332 KB n=973
17 Correct 1 ms 332 KB n=989
18 Correct 1 ms 332 KB n=563
19 Correct 2 ms 460 KB n=592
20 Correct 2 ms 460 KB n=938
21 Correct 1 ms 332 KB n=747
22 Correct 2 ms 460 KB n=991

Subtask #4
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2094 ms 29324 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB n=4
2 Correct 0 ms 204 KB n=3
3 Correct 0 ms 204 KB n=3
4 Correct 0 ms 204 KB n=4
5 Correct 0 ms 204 KB n=4
6 Correct 1 ms 272 KB n=2
7 Correct 1 ms 204 KB n=5
8 Correct 0 ms 204 KB n=8
9 Correct 0 ms 204 KB n=14
10 Correct 0 ms 204 KB n=11
11 Correct 372 ms 4356 KB n=50000
12 Correct 286 ms 4156 KB n=50000
13 Correct 0 ms 204 KB n=10
14 Correct 1 ms 332 KB n=685
15 Correct 1 ms 332 KB n=623
16 Correct 1 ms 332 KB n=973
17 Correct 1 ms 332 KB n=989
18 Correct 1 ms 332 KB n=563
19 Correct 2 ms 460 KB n=592
20 Correct 2 ms 460 KB n=938
21 Correct 1 ms 332 KB n=747
22 Correct 2 ms 460 KB n=991
23 Execution timed out 2094 ms 29324 KB Time limit exceeded
24 Halted 0 ms 0 KB -