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Submission #578100

# Submission time Handle Problem Language Result Execution time Memory
578100 2022-06-16T04:54:47 Z balbit Uplifting Excursion (BOI22_vault) C++14
50 / 100
 1246 ms 6120 KB 
#include <bits/stdc++.h>
using namespace std;
#define int ll
#define ll long long
#define pii pair<ll, ll>
#define f first
#define s second

#define SZ(x) (int)((x).size())
#define ALL(x) (x).begin(), (x).end()
#define pb push_back

#define FOR(i,a,b) for (int i = a; i<b; ++i)
#define RREP(i,n)  for (int i = n-1; i>=0;--i)
#define REP(i,n)  FOR(i,0,n)
#define REP1(i,n) FOR(i,1,n+1)

#define MX(a,b) a = max(a,b)
#define MN(a,b) a = min(a,b)
#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<": "<<#__VA_ARGS__<<"- ", _do(__VA_ARGS__)
template<typename T> void _do( T && x) {cerr<<x<<endl;}
template<typename T,typename ...S> void _do( T && x, S && ...y) {cerr<<x<<", "; _do(y...);}
#else
#define bug(...)
#define endl '\n'
#endif // BALBIT

int amt[606];
int taken[606];

const ll inf = 0x3f3f3f3f3f3f3f3f;

const int rng = 300 * 300 * 2;
ll bst[rng*2+4];

vector<ll> bd(ll x) {
    //  maybe i can min x ith rng or smth
    vector<ll> re;
    ll scale = 1;
    while(x) {
        if (x & 1)  {
            re.pb(scale); x-=1;
        }else{
            re.pb(scale); re.pb(scale); x-=2;
        }
        x/=2; scale *= 2;
    }
    return re;
}

signed main(){
    ios::sync_with_stdio(0), cin.tie(0);

    bug(1,2);

//    vector<int> hi = bd(23);
//    for (int x : hi) cout<<x<<' ';
//    return 0;

    REP(i, rng*2+4) {
        bst[i] = -inf;
    }

    int m; ll L;
    cin>>m>>L;

    ll tot = 0;
    ll things= 0;

    FOR(i,-m,m+1) {
        cin>>amt[i+m];
        tot += i * (amt[i+m]);
        things += amt[i+m];
    }
    bug(tot, L);
    if (tot < L) {
        // flip  everything
        FOR(i,0,m+1) {
            swap(amt[i+m], amt[-i+m]);
        }
        tot = -tot; L = -L;
    }

    FOR(i,-m,m+1) {
        taken[i+m] = amt[i+m];
    }

    bug(tot,L);

    for (int i = m; i>=1; --i) {
        if (tot > L + rng) {
            int need = (tot - (L+rng)-1) / i + 1; // ceiling
            need = min(need, taken[i+m]);
            taken[i+m] -= need; tot -= i * need; things -= need;
        }
        if (tot <= L+rng && tot >= L-rng) {
//            MX(bst[tot-L+rng], things);
            bug(tot, things);
            while (taken[i+m] && (tot-i >= L-rng)) {
                --taken[i+m]; tot -= i; --things;
                bug(tot, things);
//                MX(bst[tot-L+rng], things);
            }
        }
    }

    bug(tot, L, things);

    MX(bst[tot-L+rng], things);

    if (tot > L) {
        // sad
        cout<<"impossible"<<endl; return 0;
    }

    FOR(j,-2*m,2*m+1) {
        bug(j, bst[j+rng]);
    }

    FOR(i,1,m+1) {
        if (amt[i+m] - taken[i+m]) {
            // try adding stuff back
            for (ll d : bd(amt[i+m] - taken[i+m])) {
                if (i < 0) {
                    assert(0);
                }else{
                    RREP(j, rng*2+1 - d*i) {
                        MX(bst[j+d*i], bst[j]+d);
                    }
                }
            }
        }
        #ifdef BALBIT
//        bug(i, taken[i+m], amt[i+m]);
//        FOR(j,-2*m,2*m+1) {
//            bug(j, bst[j+rng]);
//        }
        #endif
    }

    FOR(i,-m,m+1) {
        if (i == 0) continue;
        if (taken[i+m]) {
            // try removing stuff
            for (ll d : bd(taken[i+m])) {
                if (i < 0) {
                    RREP(j,  rng*2+1+d*i) {
                        MX(bst[j-d*i], bst[j]-d);
                    }
                }else{
                    FOR(j, d*i, rng*2+1) {
                        MX(bst[j-d*i], bst[j]-d);
                    }
                }
            }
        }
        #ifdef BALBIT
//        bug(i, taken[i+m], amt[i+m]);
//        FOR(j,-m,m+1) {
//            bug(j, bst[j+rng]);
//        }
        #endif
    }
    if (bst[rng] <= 0) cout<<"impossible"<<endl;
    else cout<<bst[rng]<<endl;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3028 KB Output is correct
2 Correct 3 ms 3028 KB Output is correct
3 Correct 3 ms 3156 KB Output is correct
4 Correct 10 ms 3148 KB Output is correct
5 Runtime error 4 ms 6120 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3028 KB Output is correct
2 Correct 3 ms 3028 KB Output is correct
3 Correct 3 ms 3156 KB Output is correct
4 Correct 10 ms 3148 KB Output is correct
5 Runtime error 4 ms 6120 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #3-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 3148 KB Output is correct
2 Correct 133 ms 3128 KB Output is correct
3 Correct 45 ms 3140 KB Output is correct
4 Correct 117 ms 3128 KB Output is correct
5 Correct 116 ms 3128 KB Output is correct
6 Correct 93 ms 3128 KB Output is correct
7 Correct 12 ms 3028 KB Output is correct
8 Correct 11 ms 3144 KB Output is correct
9 Correct 54 ms 3124 KB Output is correct
10 Correct 81 ms 3140 KB Output is correct

Subtask #3-2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 3148 KB Output is correct
2 Correct 133 ms 3128 KB Output is correct
3 Correct 45 ms 3140 KB Output is correct
4 Correct 117 ms 3128 KB Output is correct
5 Correct 116 ms 3128 KB Output is correct
6 Correct 93 ms 3128 KB Output is correct
7 Correct 12 ms 3028 KB Output is correct
8 Correct 11 ms 3144 KB Output is correct
9 Correct 54 ms 3124 KB Output is correct
10 Correct 81 ms 3140 KB Output is correct
11 Correct 4 ms 3028 KB Output is correct
12 Correct 3 ms 3028 KB Output is correct
13 Correct 3 ms 3032 KB Output is correct
14 Correct 11 ms 3144 KB Output is correct
15 Correct 119 ms 3120 KB Output is correct
16 Correct 41 ms 3028 KB Output is correct
17 Correct 122 ms 3128 KB Output is correct
18 Correct 122 ms 3132 KB Output is correct
19 Correct 80 ms 3028 KB Output is correct
20 Correct 13 ms 3028 KB Output is correct
21 Correct 12 ms 3028 KB Output is correct
22 Correct 61 ms 3124 KB Output is correct
23 Correct 81 ms 3128 KB Output is correct
24 Correct 243 ms 3128 KB Output is correct
25 Correct 78 ms 3132 KB Output is correct
26 Correct 217 ms 3128 KB Output is correct
27 Correct 156 ms 3128 KB Output is correct
28 Correct 247 ms 3128 KB Output is correct

Subtask #4-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 3148 KB Output is correct
2 Correct 133 ms 3128 KB Output is correct
3 Correct 45 ms 3140 KB Output is correct
4 Correct 117 ms 3128 KB Output is correct
5 Correct 116 ms 3128 KB Output is correct
6 Correct 93 ms 3128 KB Output is correct
7 Correct 12 ms 3028 KB Output is correct
8 Correct 11 ms 3144 KB Output is correct
9 Correct 54 ms 3124 KB Output is correct
10 Correct 81 ms 3140 KB Output is correct
11 Correct 11 ms 3144 KB Output is correct
12 Correct 118 ms 3128 KB Output is correct
13 Correct 40 ms 3148 KB Output is correct
14 Correct 111 ms 3124 KB Output is correct
15 Correct 109 ms 3124 KB Output is correct
16 Correct 84 ms 3132 KB Output is correct
17 Correct 14 ms 3148 KB Output is correct
18 Correct 11 ms 3028 KB Output is correct
19 Correct 52 ms 3028 KB Output is correct
20 Correct 77 ms 3140 KB Output is correct
21 Correct 6 ms 3028 KB Output is correct
22 Correct 9 ms 3156 KB Output is correct
23 Correct 181 ms 3028 KB Output is correct
24 Correct 111 ms 3144 KB Output is correct
25 Correct 151 ms 3128 KB Output is correct
26 Correct 199 ms 3124 KB Output is correct
27 Correct 185 ms 3132 KB Output is correct
28 Correct 160 ms 3144 KB Output is correct

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3028 KB Output is correct
2 Correct 3 ms 3028 KB Output is correct
3 Correct 3 ms 3156 KB Output is correct
4 Correct 10 ms 3148 KB Output is correct
5 Runtime error 4 ms 6120 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #5-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 3148 KB Output is correct
2 Correct 133 ms 3128 KB Output is correct
3 Correct 45 ms 3140 KB Output is correct
4 Correct 117 ms 3128 KB Output is correct
5 Correct 116 ms 3128 KB Output is correct
6 Correct 93 ms 3128 KB Output is correct
7 Correct 12 ms 3028 KB Output is correct
8 Correct 11 ms 3144 KB Output is correct
9 Correct 54 ms 3124 KB Output is correct
10 Correct 81 ms 3140 KB Output is correct
11 Correct 11 ms 3144 KB Output is correct
12 Correct 118 ms 3128 KB Output is correct
13 Correct 40 ms 3148 KB Output is correct
14 Correct 111 ms 3124 KB Output is correct
15 Correct 109 ms 3124 KB Output is correct
16 Correct 84 ms 3132 KB Output is correct
17 Correct 14 ms 3148 KB Output is correct
18 Correct 11 ms 3028 KB Output is correct
19 Correct 52 ms 3028 KB Output is correct
20 Correct 77 ms 3140 KB Output is correct
21 Correct 6 ms 3028 KB Output is correct
22 Correct 9 ms 3156 KB Output is correct
23 Correct 181 ms 3028 KB Output is correct
24 Correct 111 ms 3144 KB Output is correct
25 Correct 151 ms 3128 KB Output is correct
26 Correct 199 ms 3124 KB Output is correct
27 Correct 185 ms 3132 KB Output is correct
28 Correct 160 ms 3144 KB Output is correct
29 Correct 10 ms 3028 KB Output is correct
30 Correct 118 ms 3132 KB Output is correct
31 Correct 46 ms 3148 KB Output is correct
32 Correct 124 ms 3028 KB Output is correct
33 Correct 125 ms 3128 KB Output is correct
34 Correct 76 ms 3124 KB Output is correct
35 Correct 12 ms 3148 KB Output is correct
36 Correct 13 ms 3144 KB Output is correct
37 Correct 53 ms 3128 KB Output is correct
38 Correct 89 ms 3128 KB Output is correct
39 Correct 6 ms 3152 KB Output is correct
40 Correct 10 ms 3144 KB Output is correct
41 Correct 159 ms 3028 KB Output is correct
42 Correct 81 ms 3148 KB Output is correct
43 Correct 158 ms 3124 KB Output is correct
44 Correct 214 ms 3028 KB Output is correct
45 Correct 181 ms 3128 KB Output is correct
46 Correct 167 ms 3140 KB Output is correct
47 Correct 7 ms 3028 KB Output is correct
48 Correct 11 ms 3028 KB Output is correct
49 Correct 345 ms 3140 KB Output is correct
50 Correct 138 ms 3128 KB Output is correct
51 Correct 374 ms 3132 KB Output is correct
52 Correct 375 ms 3124 KB Output is correct
53 Correct 382 ms 3124 KB Output is correct
54 Correct 282 ms 3196 KB Output is correct

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3028 KB Output is correct
2 Correct 3 ms 3028 KB Output is correct
3 Correct 3 ms 3156 KB Output is correct
4 Correct 10 ms 3148 KB Output is correct
5 Runtime error 4 ms 6120 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #6-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 3148 KB Output is correct
2 Correct 133 ms 3128 KB Output is correct
3 Correct 45 ms 3140 KB Output is correct
4 Correct 117 ms 3128 KB Output is correct
5 Correct 116 ms 3128 KB Output is correct
6 Correct 93 ms 3128 KB Output is correct
7 Correct 12 ms 3028 KB Output is correct
8 Correct 11 ms 3144 KB Output is correct
9 Correct 54 ms 3124 KB Output is correct
10 Correct 81 ms 3140 KB Output is correct
11 Correct 11 ms 3144 KB Output is correct
12 Correct 118 ms 3128 KB Output is correct
13 Correct 40 ms 3148 KB Output is correct
14 Correct 111 ms 3124 KB Output is correct
15 Correct 109 ms 3124 KB Output is correct
16 Correct 84 ms 3132 KB Output is correct
17 Correct 14 ms 3148 KB Output is correct
18 Correct 11 ms 3028 KB Output is correct
19 Correct 52 ms 3028 KB Output is correct
20 Correct 77 ms 3140 KB Output is correct
21 Correct 6 ms 3028 KB Output is correct
22 Correct 9 ms 3156 KB Output is correct
23 Correct 181 ms 3028 KB Output is correct
24 Correct 111 ms 3144 KB Output is correct
25 Correct 151 ms 3128 KB Output is correct
26 Correct 199 ms 3124 KB Output is correct
27 Correct 185 ms 3132 KB Output is correct
28 Correct 160 ms 3144 KB Output is correct
29 Correct 10 ms 3028 KB Output is correct
30 Correct 118 ms 3132 KB Output is correct
31 Correct 46 ms 3148 KB Output is correct
32 Correct 124 ms 3028 KB Output is correct
33 Correct 125 ms 3128 KB Output is correct
34 Correct 76 ms 3124 KB Output is correct
35 Correct 12 ms 3148 KB Output is correct
36 Correct 13 ms 3144 KB Output is correct
37 Correct 53 ms 3128 KB Output is correct
38 Correct 89 ms 3128 KB Output is correct
39 Correct 6 ms 3152 KB Output is correct
40 Correct 10 ms 3144 KB Output is correct
41 Correct 159 ms 3028 KB Output is correct
42 Correct 81 ms 3148 KB Output is correct
43 Correct 158 ms 3124 KB Output is correct
44 Correct 214 ms 3028 KB Output is correct
45 Correct 181 ms 3128 KB Output is correct
46 Correct 167 ms 3140 KB Output is correct
47 Correct 7 ms 3028 KB Output is correct
48 Correct 11 ms 3028 KB Output is correct
49 Correct 345 ms 3140 KB Output is correct
50 Correct 138 ms 3128 KB Output is correct
51 Correct 374 ms 3132 KB Output is correct
52 Correct 375 ms 3124 KB Output is correct
53 Correct 382 ms 3124 KB Output is correct
54 Correct 282 ms 3196 KB Output is correct
55 Correct 14 ms 3144 KB Output is correct
56 Correct 124 ms 3132 KB Output is correct
57 Correct 42 ms 3148 KB Output is correct
58 Correct 113 ms 3124 KB Output is correct
59 Correct 116 ms 3128 KB Output is correct
60 Correct 86 ms 3128 KB Output is correct
61 Correct 14 ms 3028 KB Output is correct
62 Correct 11 ms 3028 KB Output is correct
63 Correct 55 ms 3140 KB Output is correct
64 Correct 85 ms 3120 KB Output is correct
65 Correct 6 ms 3028 KB Output is correct
66 Correct 8 ms 3028 KB Output is correct
67 Correct 168 ms 3044 KB Output is correct
68 Correct 102 ms 3028 KB Output is correct
69 Correct 166 ms 3132 KB Output is correct
70 Correct 210 ms 3124 KB Output is correct
71 Correct 170 ms 3028 KB Output is correct
72 Correct 164 ms 3136 KB Output is correct
73 Correct 8 ms 3028 KB Output is correct
74 Correct 13 ms 3148 KB Output is correct
75 Correct 352 ms 3128 KB Output is correct
76 Correct 146 ms 3028 KB Output is correct
77 Correct 419 ms 3128 KB Output is correct
78 Correct 378 ms 3124 KB Output is correct
79 Correct 368 ms 3128 KB Output is correct
80 Correct 281 ms 3128 KB Output is correct
81 Correct 1122 ms 3128 KB Output is correct
82 Correct 503 ms 3132 KB Output is correct
83 Correct 1107 ms 3132 KB Output is correct
84 Correct 1246 ms 3152 KB Output is correct
85 Correct 11 ms 3028 KB Output is correct
86 Correct 12 ms 3148 KB Output is correct
87 Correct 1055 ms 3132 KB Output is correct

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 3028 KB Output is correct
2 Correct 3 ms 3028 KB Output is correct
3 Correct 3 ms 3156 KB Output is correct
4 Correct 10 ms 3148 KB Output is correct
5 Runtime error 4 ms 6120 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -