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Submission #578102

# Submission time Handle Problem Language Result Execution time Memory
578102 2022-06-16T05:03:27 Z balbit Uplifting Excursion (BOI22_vault) C++17
50 / 100
 1233 ms 6100 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

ll amt[606];
ll 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;
}

void ASS(bool x) {
    if (!x) while(1);
}

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) {

                    ASS(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) {
                        if (j - d*i < 0) ASS(0);
                        if (j - d*i > rng*2) ASS(0);
                        MX(bst[j-d*i], bst[j]-d);
                    }
                }else{
                    FOR(j, d*i, rng*2+1) {
                        if (j - d*i < 0) ASS(0);
                        if (j - d*i > rng*2) ASS(0);
                        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 5 ms 3028 KB Output is correct
2 Correct 5 ms 3028 KB Output is correct
3 Correct 3 ms 3028 KB Output is correct
4 Correct 12 ms 3028 KB Output is correct
5 Runtime error 4 ms 6100 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 5 ms 3028 KB Output is correct
2 Correct 5 ms 3028 KB Output is correct
3 Correct 3 ms 3028 KB Output is correct
4 Correct 12 ms 3028 KB Output is correct
5 Runtime error 4 ms 6100 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 12 ms 3028 KB Output is correct
2 Correct 159 ms 3132 KB Output is correct
3 Correct 56 ms 3148 KB Output is correct
4 Correct 138 ms 3128 KB Output is correct
5 Correct 153 ms 3132 KB Output is correct
6 Correct 91 ms 3124 KB Output is correct
7 Correct 14 ms 3028 KB Output is correct
8 Correct 11 ms 3148 KB Output is correct
9 Correct 113 ms 3132 KB Output is correct
10 Correct 99 ms 3132 KB Output is correct

Subtask #3-2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 3028 KB Output is correct
2 Correct 159 ms 3132 KB Output is correct
3 Correct 56 ms 3148 KB Output is correct
4 Correct 138 ms 3128 KB Output is correct
5 Correct 153 ms 3132 KB Output is correct
6 Correct 91 ms 3124 KB Output is correct
7 Correct 14 ms 3028 KB Output is correct
8 Correct 11 ms 3148 KB Output is correct
9 Correct 113 ms 3132 KB Output is correct
10 Correct 99 ms 3132 KB Output is correct
11 Correct 7 ms 3028 KB Output is correct
12 Correct 4 ms 3028 KB Output is correct
13 Correct 4 ms 3144 KB Output is correct
14 Correct 15 ms 3148 KB Output is correct
15 Correct 149 ms 3128 KB Output is correct
16 Correct 47 ms 3144 KB Output is correct
17 Correct 135 ms 3124 KB Output is correct
18 Correct 136 ms 3128 KB Output is correct
19 Correct 84 ms 3140 KB Output is correct
20 Correct 21 ms 3028 KB Output is correct
21 Correct 12 ms 3028 KB Output is correct
22 Correct 56 ms 3124 KB Output is correct
23 Correct 93 ms 3128 KB Output is correct
24 Correct 295 ms 3124 KB Output is correct
25 Correct 86 ms 3124 KB Output is correct
26 Correct 271 ms 3128 KB Output is correct
27 Correct 189 ms 3128 KB Output is correct
28 Correct 251 ms 3132 KB Output is correct

Subtask #4-1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 3028 KB Output is correct
2 Correct 159 ms 3132 KB Output is correct
3 Correct 56 ms 3148 KB Output is correct
4 Correct 138 ms 3128 KB Output is correct
5 Correct 153 ms 3132 KB Output is correct
6 Correct 91 ms 3124 KB Output is correct
7 Correct 14 ms 3028 KB Output is correct
8 Correct 11 ms 3148 KB Output is correct
9 Correct 113 ms 3132 KB Output is correct
10 Correct 99 ms 3132 KB Output is correct
11 Correct 14 ms 3148 KB Output is correct
12 Correct 133 ms 3028 KB Output is correct
13 Correct 56 ms 3132 KB Output is correct
14 Correct 125 ms 3132 KB Output is correct
15 Correct 127 ms 3028 KB Output is correct
16 Correct 80 ms 3128 KB Output is correct
17 Correct 12 ms 3144 KB Output is correct
18 Correct 11 ms 3156 KB Output is correct
19 Correct 55 ms 3028 KB Output is correct
20 Correct 90 ms 3132 KB Output is correct
21 Correct 6 ms 3028 KB Output is correct
22 Correct 8 ms 3144 KB Output is correct
23 Correct 184 ms 3132 KB Output is correct
24 Correct 95 ms 3132 KB Output is correct
25 Correct 181 ms 3124 KB Output is correct
26 Correct 210 ms 3124 KB Output is correct
27 Correct 186 ms 3128 KB Output is correct
28 Correct 196 ms 3132 KB Output is correct

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3028 KB Output is correct
2 Correct 5 ms 3028 KB Output is correct
3 Correct 3 ms 3028 KB Output is correct
4 Correct 12 ms 3028 KB Output is correct
5 Runtime error 4 ms 6100 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 12 ms 3028 KB Output is correct
2 Correct 159 ms 3132 KB Output is correct
3 Correct 56 ms 3148 KB Output is correct
4 Correct 138 ms 3128 KB Output is correct
5 Correct 153 ms 3132 KB Output is correct
6 Correct 91 ms 3124 KB Output is correct
7 Correct 14 ms 3028 KB Output is correct
8 Correct 11 ms 3148 KB Output is correct
9 Correct 113 ms 3132 KB Output is correct
10 Correct 99 ms 3132 KB Output is correct
11 Correct 14 ms 3148 KB Output is correct
12 Correct 133 ms 3028 KB Output is correct
13 Correct 56 ms 3132 KB Output is correct
14 Correct 125 ms 3132 KB Output is correct
15 Correct 127 ms 3028 KB Output is correct
16 Correct 80 ms 3128 KB Output is correct
17 Correct 12 ms 3144 KB Output is correct
18 Correct 11 ms 3156 KB Output is correct
19 Correct 55 ms 3028 KB Output is correct
20 Correct 90 ms 3132 KB Output is correct
21 Correct 6 ms 3028 KB Output is correct
22 Correct 8 ms 3144 KB Output is correct
23 Correct 184 ms 3132 KB Output is correct
24 Correct 95 ms 3132 KB Output is correct
25 Correct 181 ms 3124 KB Output is correct
26 Correct 210 ms 3124 KB Output is correct
27 Correct 186 ms 3128 KB Output is correct
28 Correct 196 ms 3132 KB Output is correct
29 Correct 11 ms 3028 KB Output is correct
30 Correct 136 ms 3132 KB Output is correct
31 Correct 50 ms 3148 KB Output is correct
32 Correct 120 ms 3132 KB Output is correct
33 Correct 127 ms 3028 KB Output is correct
34 Correct 88 ms 3128 KB Output is correct
35 Correct 12 ms 3144 KB Output is correct
36 Correct 11 ms 3144 KB Output is correct
37 Correct 54 ms 3128 KB Output is correct
38 Correct 92 ms 3136 KB Output is correct
39 Correct 6 ms 3028 KB Output is correct
40 Correct 8 ms 3028 KB Output is correct
41 Correct 184 ms 3028 KB Output is correct
42 Correct 94 ms 3028 KB Output is correct
43 Correct 186 ms 3128 KB Output is correct
44 Correct 212 ms 3124 KB Output is correct
45 Correct 167 ms 3128 KB Output is correct
46 Correct 186 ms 3132 KB Output is correct
47 Correct 8 ms 3028 KB Output is correct
48 Correct 9 ms 3112 KB Output is correct
49 Correct 364 ms 3128 KB Output is correct
50 Correct 162 ms 3124 KB Output is correct
51 Correct 382 ms 3140 KB Output is correct
52 Correct 408 ms 3132 KB Output is correct
53 Correct 335 ms 3124 KB Output is correct
54 Correct 315 ms 3028 KB Output is correct

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3028 KB Output is correct
2 Correct 5 ms 3028 KB Output is correct
3 Correct 3 ms 3028 KB Output is correct
4 Correct 12 ms 3028 KB Output is correct
5 Runtime error 4 ms 6100 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 12 ms 3028 KB Output is correct
2 Correct 159 ms 3132 KB Output is correct
3 Correct 56 ms 3148 KB Output is correct
4 Correct 138 ms 3128 KB Output is correct
5 Correct 153 ms 3132 KB Output is correct
6 Correct 91 ms 3124 KB Output is correct
7 Correct 14 ms 3028 KB Output is correct
8 Correct 11 ms 3148 KB Output is correct
9 Correct 113 ms 3132 KB Output is correct
10 Correct 99 ms 3132 KB Output is correct
11 Correct 14 ms 3148 KB Output is correct
12 Correct 133 ms 3028 KB Output is correct
13 Correct 56 ms 3132 KB Output is correct
14 Correct 125 ms 3132 KB Output is correct
15 Correct 127 ms 3028 KB Output is correct
16 Correct 80 ms 3128 KB Output is correct
17 Correct 12 ms 3144 KB Output is correct
18 Correct 11 ms 3156 KB Output is correct
19 Correct 55 ms 3028 KB Output is correct
20 Correct 90 ms 3132 KB Output is correct
21 Correct 6 ms 3028 KB Output is correct
22 Correct 8 ms 3144 KB Output is correct
23 Correct 184 ms 3132 KB Output is correct
24 Correct 95 ms 3132 KB Output is correct
25 Correct 181 ms 3124 KB Output is correct
26 Correct 210 ms 3124 KB Output is correct
27 Correct 186 ms 3128 KB Output is correct
28 Correct 196 ms 3132 KB Output is correct
29 Correct 11 ms 3028 KB Output is correct
30 Correct 136 ms 3132 KB Output is correct
31 Correct 50 ms 3148 KB Output is correct
32 Correct 120 ms 3132 KB Output is correct
33 Correct 127 ms 3028 KB Output is correct
34 Correct 88 ms 3128 KB Output is correct
35 Correct 12 ms 3144 KB Output is correct
36 Correct 11 ms 3144 KB Output is correct
37 Correct 54 ms 3128 KB Output is correct
38 Correct 92 ms 3136 KB Output is correct
39 Correct 6 ms 3028 KB Output is correct
40 Correct 8 ms 3028 KB Output is correct
41 Correct 184 ms 3028 KB Output is correct
42 Correct 94 ms 3028 KB Output is correct
43 Correct 186 ms 3128 KB Output is correct
44 Correct 212 ms 3124 KB Output is correct
45 Correct 167 ms 3128 KB Output is correct
46 Correct 186 ms 3132 KB Output is correct
47 Correct 8 ms 3028 KB Output is correct
48 Correct 9 ms 3112 KB Output is correct
49 Correct 364 ms 3128 KB Output is correct
50 Correct 162 ms 3124 KB Output is correct
51 Correct 382 ms 3140 KB Output is correct
52 Correct 408 ms 3132 KB Output is correct
53 Correct 335 ms 3124 KB Output is correct
54 Correct 315 ms 3028 KB Output is correct
55 Correct 11 ms 3144 KB Output is correct
56 Correct 135 ms 3124 KB Output is correct
57 Correct 54 ms 3028 KB Output is correct
58 Correct 122 ms 3028 KB Output is correct
59 Correct 121 ms 3028 KB Output is correct
60 Correct 79 ms 3028 KB Output is correct
61 Correct 12 ms 3028 KB Output is correct
62 Correct 10 ms 3028 KB Output is correct
63 Correct 57 ms 3132 KB Output is correct
64 Correct 87 ms 3028 KB Output is correct
65 Correct 6 ms 3044 KB Output is correct
66 Correct 8 ms 3148 KB Output is correct
67 Correct 173 ms 3128 KB Output is correct
68 Correct 99 ms 3124 KB Output is correct
69 Correct 177 ms 3140 KB Output is correct
70 Correct 206 ms 3124 KB Output is correct
71 Correct 163 ms 3124 KB Output is correct
72 Correct 189 ms 3124 KB Output is correct
73 Correct 7 ms 3028 KB Output is correct
74 Correct 9 ms 3028 KB Output is correct
75 Correct 360 ms 3028 KB Output is correct
76 Correct 163 ms 3124 KB Output is correct
77 Correct 385 ms 3124 KB Output is correct
78 Correct 407 ms 3128 KB Output is correct
79 Correct 330 ms 3028 KB Output is correct
80 Correct 335 ms 3128 KB Output is correct
81 Correct 1229 ms 3276 KB Output is correct
82 Correct 538 ms 3136 KB Output is correct
83 Correct 1170 ms 3256 KB Output is correct
84 Correct 1233 ms 3276 KB Output is correct
85 Correct 10 ms 3144 KB Output is correct
86 Correct 11 ms 3028 KB Output is correct
87 Correct 1080 ms 3132 KB Output is correct

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 3028 KB Output is correct
2 Correct 5 ms 3028 KB Output is correct
3 Correct 3 ms 3028 KB Output is correct
4 Correct 12 ms 3028 KB Output is correct
5 Runtime error 4 ms 6100 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -