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Submission #406067

# Submission time Handle Problem Language Result Execution time Memory
406067 2021-05-17T07:37:06 Z tqbfjotld The short shank; Redemption (BOI21_prison) C++14
80 / 100
 2000 ms 27460 KB 
#include <bits/stdc++.h>
using namespace std;

int range_len[2000005];
pair<int,int> memo[4005][4005];
int N,D,T;

pair<int,int> operator+ (pair<int,int> a, pair<int,int> b){
    return {a.first+b.first,a.second+b.second};
}

pair<int,int> solve(int K){
    //printf("solving %lld\n",K);
    int v1 = 0;
    multiset<int> inc_loc;
    multiset<int> inc_loc_2;
    int v2 = 0;
    int offset = 0;
    if (range_len[N-1]>0){
        v1 = 1;
    }
    else{
        inc_loc.insert(1);
    }
    for (int x = N-2; x>=0; x--){
        offset++;v1++;
        if (range_len[x]==0){
            v1--;
            inc_loc.insert(1-offset);
        }
        else{
            while ((!inc_loc.empty())&&(*inc_loc.begin())+offset<=range_len[x]){
                inc_loc.erase(inc_loc.begin());
                v1++;
            }
            while ((!inc_loc_2.empty())&&(*inc_loc_2.begin())+offset<=range_len[x]){
                inc_loc_2.erase(inc_loc_2.begin());
                v2++;
            }
        }
        int other_val = v1+K;
        int last_erased = 999999999;
        while (v1+inc_loc.size()>other_val){
            //printf("hi\n");
            last_erased = (*--inc_loc.end());
            inc_loc.erase(--inc_loc.end());
        }
        if (last_erased!=999999999) {
                while (!inc_loc_2.empty() && (*--inc_loc_2.end())>last_erased)inc_loc_2.erase(--inc_loc_2.end());
                inc_loc_2.insert(last_erased);
        }

       /* int t = v2;
        for (int x = 0; x<=N; x++){
            printf("%lld ",t);
            t+=inc_loc_2.count(x-offset);
        }
        printf("\n");*/
    }
    //printf("\n");
/*
    for (int x = N-1; x>=0; x--){
        for (int o = 0; o<=N; o++){
            memo[x][o] = memo[x+1][0]+make_pair(K+(range_len[x]>0),1);
            if (o>range_len[x]) memo[x][o] = min(memo[x][o],memo[x+1][o-1]+make_pair(1,0));
            else memo[x][o] = min(memo[x][o],memo[x+1][max(0LL,range_len[x]-1)]+make_pair((range_len[x]>0),0));
            printf("%lld ",memo[x][o].second);
        }
        printf("\n");
    }
    printf("\n");
    assert(v1==memo[0][0].first);
    assert(v2==memo[0][0].second);*/
    return {v1,v2};
}

inline void scan(int &a){
    a = 0;
    char ch = ' ';
    while (ch<'0'||ch>'9') ch = getchar();
    while (ch>='0'&&ch<='9'){
        a = (a<<3)+(a<<1)+ch-'0';
        ch = getchar();
    }
}

main(){
    scan(N); scan(D); scan(T);
    for (int x = 0; x<N; x++){
        int a;
        scan(a);
        range_len[x] = T-a+1;
        if (range_len[x]<0) range_len[x] = 0;
        if (x+range_len[x]>N) range_len[x] = N-x;
    }
    int a = -1;
    int b = N;
    while (a+1<b){
        //printf("try %lld\n",(a+b)/2);
        if (solve((a+b)/2).second>D){
            a = (a+b)/2;
        }
        else b = (a+b)/2;
    }
    //for (int x = 0; x<=N; x++) solve(x);
    pair<int,int> res = solve(b);
    //printf("b = %lld, res = %lld %lld\n",b,res);
    printf("%d",res.first-res.second*b-b*(D-res.second));
}

Compilation message

prison.cpp: In function 'std::pair<int, int> solve(int)':
prison.cpp:43:33: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   43 |         while (v1+inc_loc.size()>other_val){
      |                ~~~~~~~~~~~~~~~~~^~~~~~~~~~
prison.cpp: At global scope:
prison.cpp:87:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   87 | main(){
      | ^~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 306 ms 2244 KB Output is correct
3 Correct 217 ms 2244 KB Output is correct
4 Correct 363 ms 3616 KB Output is correct
5 Correct 732 ms 2936 KB Output is correct
6 Correct 986 ms 10808 KB Output is correct
7 Correct 1439 ms 13988 KB Output is correct
8 Correct 875 ms 9408 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 216 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 2 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 2 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 2 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 3 ms 324 KB Output is correct
24 Correct 2 ms 204 KB Output is correct
25 Correct 3 ms 204 KB Output is correct
26 Correct 3 ms 332 KB Output is correct
27 Correct 3 ms 204 KB Output is correct
28 Correct 2 ms 204 KB Output is correct
29 Correct 3 ms 204 KB Output is correct
30 Correct 5 ms 332 KB Output is correct
31 Correct 5 ms 332 KB Output is correct
32 Correct 3 ms 332 KB Output is correct
33 Correct 3 ms 332 KB Output is correct
34 Correct 4 ms 332 KB Output is correct
35 Correct 4 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 58 ms 588 KB Output is correct
3 Correct 39 ms 588 KB Output is correct
4 Correct 114 ms 2344 KB Output is correct
5 Correct 123 ms 2340 KB Output is correct
6 Correct 131 ms 2256 KB Output is correct
7 Correct 150 ms 2084 KB Output is correct
8 Correct 127 ms 2116 KB Output is correct
9 Correct 167 ms 2252 KB Output is correct
10 Correct 58 ms 940 KB Output is correct

Subtask #5
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 216 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 2 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 2 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 2 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 3 ms 324 KB Output is correct
24 Correct 2 ms 204 KB Output is correct
25 Correct 3 ms 204 KB Output is correct
26 Correct 3 ms 332 KB Output is correct
27 Correct 3 ms 204 KB Output is correct
28 Correct 2 ms 204 KB Output is correct
29 Correct 3 ms 204 KB Output is correct
30 Correct 5 ms 332 KB Output is correct
31 Correct 5 ms 332 KB Output is correct
32 Correct 3 ms 332 KB Output is correct
33 Correct 3 ms 332 KB Output is correct
34 Correct 4 ms 332 KB Output is correct
35 Correct 4 ms 332 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 58 ms 588 KB Output is correct
38 Correct 39 ms 588 KB Output is correct
39 Correct 114 ms 2344 KB Output is correct
40 Correct 123 ms 2340 KB Output is correct
41 Correct 131 ms 2256 KB Output is correct
42 Correct 150 ms 2084 KB Output is correct
43 Correct 127 ms 2116 KB Output is correct
44 Correct 167 ms 2252 KB Output is correct
45 Correct 58 ms 940 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 1 ms 204 KB Output is correct
48 Correct 1 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 3 ms 328 KB Output is correct
58 Correct 4 ms 204 KB Output is correct
59 Correct 3 ms 204 KB Output is correct
60 Correct 3 ms 204 KB Output is correct
61 Correct 3 ms 204 KB Output is correct
62 Correct 3 ms 204 KB Output is correct
63 Correct 3 ms 204 KB Output is correct
64 Correct 5 ms 332 KB Output is correct
65 Correct 5 ms 332 KB Output is correct
66 Correct 3 ms 332 KB Output is correct
67 Correct 3 ms 332 KB Output is correct
68 Correct 4 ms 332 KB Output is correct
69 Correct 3 ms 332 KB Output is correct
70 Correct 1 ms 204 KB Output is correct
71 Correct 57 ms 588 KB Output is correct
72 Correct 40 ms 588 KB Output is correct
73 Correct 119 ms 2352 KB Output is correct
74 Correct 127 ms 2340 KB Output is correct
75 Correct 131 ms 2340 KB Output is correct
76 Correct 127 ms 2080 KB Output is correct
77 Correct 129 ms 2236 KB Output is correct
78 Correct 167 ms 2340 KB Output is correct
79 Correct 59 ms 956 KB Output is correct
80 Correct 40 ms 584 KB Output is correct
81 Correct 49 ms 588 KB Output is correct
82 Correct 43 ms 588 KB Output is correct
83 Correct 100 ms 1252 KB Output is correct
84 Correct 101 ms 700 KB Output is correct
85 Correct 129 ms 2340 KB Output is correct
86 Correct 110 ms 1868 KB Output is correct
87 Correct 120 ms 2008 KB Output is correct
88 Correct 197 ms 2252 KB Output is correct
89 Correct 162 ms 2336 KB Output is correct
90 Correct 122 ms 2252 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 306 ms 2244 KB Output is correct
14 Correct 217 ms 2244 KB Output is correct
15 Correct 363 ms 3616 KB Output is correct
16 Correct 732 ms 2936 KB Output is correct
17 Correct 986 ms 10808 KB Output is correct
18 Correct 1439 ms 13988 KB Output is correct
19 Correct 875 ms 9408 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 216 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 2 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 2 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 2 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 3 ms 324 KB Output is correct
32 Correct 2 ms 204 KB Output is correct
33 Correct 3 ms 204 KB Output is correct
34 Correct 3 ms 332 KB Output is correct
35 Correct 3 ms 204 KB Output is correct
36 Correct 2 ms 204 KB Output is correct
37 Correct 3 ms 204 KB Output is correct
38 Correct 5 ms 332 KB Output is correct
39 Correct 5 ms 332 KB Output is correct
40 Correct 3 ms 332 KB Output is correct
41 Correct 3 ms 332 KB Output is correct
42 Correct 4 ms 332 KB Output is correct
43 Correct 4 ms 332 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 58 ms 588 KB Output is correct
46 Correct 39 ms 588 KB Output is correct
47 Correct 114 ms 2344 KB Output is correct
48 Correct 123 ms 2340 KB Output is correct
49 Correct 131 ms 2256 KB Output is correct
50 Correct 150 ms 2084 KB Output is correct
51 Correct 127 ms 2116 KB Output is correct
52 Correct 167 ms 2252 KB Output is correct
53 Correct 58 ms 940 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 1 ms 204 KB Output is correct
64 Correct 1 ms 204 KB Output is correct
65 Correct 3 ms 328 KB Output is correct
66 Correct 4 ms 204 KB Output is correct
67 Correct 3 ms 204 KB Output is correct
68 Correct 3 ms 204 KB Output is correct
69 Correct 3 ms 204 KB Output is correct
70 Correct 3 ms 204 KB Output is correct
71 Correct 3 ms 204 KB Output is correct
72 Correct 5 ms 332 KB Output is correct
73 Correct 5 ms 332 KB Output is correct
74 Correct 3 ms 332 KB Output is correct
75 Correct 3 ms 332 KB Output is correct
76 Correct 4 ms 332 KB Output is correct
77 Correct 3 ms 332 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 57 ms 588 KB Output is correct
80 Correct 40 ms 588 KB Output is correct
81 Correct 119 ms 2352 KB Output is correct
82 Correct 127 ms 2340 KB Output is correct
83 Correct 131 ms 2340 KB Output is correct
84 Correct 127 ms 2080 KB Output is correct
85 Correct 129 ms 2236 KB Output is correct
86 Correct 167 ms 2340 KB Output is correct
87 Correct 59 ms 956 KB Output is correct
88 Correct 40 ms 584 KB Output is correct
89 Correct 49 ms 588 KB Output is correct
90 Correct 43 ms 588 KB Output is correct
91 Correct 100 ms 1252 KB Output is correct
92 Correct 101 ms 700 KB Output is correct
93 Correct 129 ms 2340 KB Output is correct
94 Correct 110 ms 1868 KB Output is correct
95 Correct 120 ms 2008 KB Output is correct
96 Correct 197 ms 2252 KB Output is correct
97 Correct 162 ms 2336 KB Output is correct
98 Correct 122 ms 2252 KB Output is correct
99 Correct 1 ms 204 KB Output is correct
100 Correct 1 ms 204 KB Output is correct
101 Correct 1 ms 204 KB Output is correct
102 Correct 1 ms 204 KB Output is correct
103 Correct 1 ms 204 KB Output is correct
104 Correct 1 ms 204 KB Output is correct
105 Correct 2 ms 204 KB Output is correct
106 Correct 1 ms 204 KB Output is correct
107 Correct 1 ms 204 KB Output is correct
108 Correct 1 ms 204 KB Output is correct
109 Correct 1 ms 308 KB Output is correct
110 Correct 1 ms 204 KB Output is correct
111 Correct 291 ms 2240 KB Output is correct
112 Correct 217 ms 2244 KB Output is correct
113 Correct 365 ms 3616 KB Output is correct
114 Correct 748 ms 2964 KB Output is correct
115 Correct 1006 ms 10812 KB Output is correct
116 Correct 1411 ms 13992 KB Output is correct
117 Correct 891 ms 9404 KB Output is correct
118 Correct 3 ms 332 KB Output is correct
119 Correct 3 ms 204 KB Output is correct
120 Correct 4 ms 204 KB Output is correct
121 Correct 4 ms 204 KB Output is correct
122 Correct 3 ms 204 KB Output is correct
123 Correct 3 ms 204 KB Output is correct
124 Correct 3 ms 204 KB Output is correct
125 Correct 5 ms 332 KB Output is correct
126 Correct 5 ms 332 KB Output is correct
127 Correct 3 ms 332 KB Output is correct
128 Correct 3 ms 332 KB Output is correct
129 Correct 4 ms 332 KB Output is correct
130 Correct 3 ms 356 KB Output is correct
131 Correct 1 ms 204 KB Output is correct
132 Correct 49 ms 588 KB Output is correct
133 Correct 39 ms 588 KB Output is correct
134 Correct 141 ms 2340 KB Output is correct
135 Correct 123 ms 2336 KB Output is correct
136 Correct 127 ms 2344 KB Output is correct
137 Correct 126 ms 2084 KB Output is correct
138 Correct 131 ms 2124 KB Output is correct
139 Correct 166 ms 2340 KB Output is correct
140 Correct 58 ms 844 KB Output is correct
141 Correct 41 ms 588 KB Output is correct
142 Correct 54 ms 588 KB Output is correct
143 Correct 43 ms 580 KB Output is correct
144 Correct 98 ms 1252 KB Output is correct
145 Correct 90 ms 716 KB Output is correct
146 Correct 150 ms 2340 KB Output is correct
147 Correct 110 ms 1908 KB Output is correct
148 Correct 116 ms 2020 KB Output is correct
149 Correct 164 ms 2336 KB Output is correct
150 Correct 160 ms 2268 KB Output is correct
151 Correct 125 ms 2252 KB Output is correct
152 Correct 1330 ms 8104 KB Output is correct
153 Correct 1383 ms 8132 KB Output is correct
154 Correct 1206 ms 8132 KB Output is correct
155 Execution timed out 2087 ms 27460 KB Time limit exceeded
156 Halted 0 ms 0 KB -