oj.uz

Submission #224044

# Submission time Handle Problem Language Result Execution time Memory
224044 2020-04-17T06:02:22 Z tqbfjotld Collecting Stamps 3 (JOI20_ho_t3) C++14
15 / 100
 235 ms 135288 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF 2000000009
#define DEBUG false

int pos[205];
int reqt[205];
bool collected[205];
int n,L;
int memo[205][205][205][2];

int func(int l, int r, int num, bool side){
    if (l==0 && r==0){
        return num==0?0:INF;
    }
    if (l==0){
        if (!side) return memo[l][r][num][side] = INF;
    }
    if (r==0){
        if (side) return memo[l][r][num][side] = INF;
    }
    if (num<=0){
        return side?pos[r-1]:(L-pos[n-l]);
    }
    if (memo[l][r][num][side]!=-1) return memo[l][r][num][side];


    if (side){
        int ans = INF;
        ans = min(ans,func(l,r-1,num,true)+pos[r-1]-pos[r-2]);
        if (DEBUG) printf("%d %d\n",ans,func(l,r-1,num,true));
        ans = min(ans,func(l,r-1,num,false)+pos[r-1]+L-pos[n-l]);
        if (DEBUG) printf("%d\n",ans);
        int t = func(l,r-1,num-1,true);
        if (t+pos[r-1]-pos[r-2]<=reqt[r-1]){
            ans = min(ans,t+pos[r-1]-pos[r-2]);
        }
        if (DEBUG) printf("%d\n",ans);
        t = func(l,r-1,num-1,false);
        if (t+pos[r-1]+L-pos[n-l]<=reqt[r-1]){
            ans = min(ans,t+pos[r-1]+L-pos[n-1]);
        }
        if (DEBUG) printf("%d\n",ans);
        return memo[l][r][num][side] = ans;
    }
    else{
        int ans = INF;
        ans = min(ans,func(l-1,r,num,true)+pos[r-1]+L-pos[n-l]);
        ans = min(ans,func(l-1,r,num,false)+pos[n-l+1]-pos[n-l]);
        int t = func(l-1,r,num-1,true);
        if (t+pos[r-1]+L-pos[n-l]<=reqt[n-l]){
            ans = min(ans,t+pos[r-1]+L-pos[n-l]);
        }
        t = func(l-1,r,num-1,false);
        if (t+pos[n-l+1]-pos[n-l]<=reqt[n-l]){
            ans = min(ans,t+pos[n-l+1]-pos[n-l]);
        }
        return memo[l][r][num][side] = ans;
    }
}

main(){
    scanf("%lld%lld",&n,&L);
    for (int x = 0; x<n; x++){
        scanf("%lld",&pos[x]);
    }
    for (int x = 0; x<n; x++){
        scanf("%lld",&reqt[x]);
    }
    pos[n] = L;
    reqt[n] = INF;
    memset(memo,-1,sizeof(memo));
    int ans = 0;
    for (int x = 0; x<=n; x++){
        for (int t = 0; t<=n; t++){
             //   printf("time for %d to %d, %d stamps, end at right = %d\n",-x,n-x,t,func(x,n-x,t,true));
            if (func(x,n-x,t,true)<INF){

                ans = max(ans,t);
            }
            if (func(x,n-x,t,false)<INF){
                ans = max(ans,t);
            }
        }
    }
    printf("%lld",ans);
}

Compilation message

ho_t3.cpp: In function 'long long int func(long long int, long long int, long long int, bool)':
ho_t3.cpp:32:61: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         if (DEBUG) printf("%d %d\n",ans,func(l,r-1,num,true));
                                                             ^
ho_t3.cpp:32:61: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' [-Wformat=]
ho_t3.cpp:34:37: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         if (DEBUG) printf("%d\n",ans);
                                     ^
ho_t3.cpp:39:37: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         if (DEBUG) printf("%d\n",ans);
                                     ^
ho_t3.cpp:44:37: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         if (DEBUG) printf("%d\n",ans);
                                     ^
ho_t3.cpp: At global scope:
ho_t3.cpp:63:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
ho_t3.cpp: In function 'int main()':
ho_t3.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld",&n,&L);
     ~~~~~^~~~~~~~~~~~~~~~~~
ho_t3.cpp:66:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&pos[x]);
         ~~~~~^~~~~~~~~~~~~~~~
ho_t3.cpp:69:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld",&reqt[x]);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 135160 KB Output is correct
2 Correct 67 ms 135288 KB Output is correct
3 Correct 68 ms 135160 KB Output is correct
4 Correct 65 ms 135160 KB Output is correct
5 Correct 72 ms 135160 KB Output is correct
6 Correct 65 ms 135160 KB Output is correct
7 Correct 67 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 74 ms 135160 KB Output is correct
10 Correct 67 ms 135160 KB Output is correct
11 Correct 67 ms 135160 KB Output is correct
12 Correct 68 ms 135160 KB Output is correct
13 Correct 68 ms 135160 KB Output is correct
14 Correct 66 ms 135160 KB Output is correct
15 Correct 67 ms 135160 KB Output is correct
16 Correct 69 ms 135160 KB Output is correct
17 Correct 68 ms 135160 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 135160 KB Output is correct
2 Correct 67 ms 135288 KB Output is correct
3 Correct 68 ms 135160 KB Output is correct
4 Correct 65 ms 135160 KB Output is correct
5 Correct 72 ms 135160 KB Output is correct
6 Correct 65 ms 135160 KB Output is correct
7 Correct 67 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 74 ms 135160 KB Output is correct
10 Correct 67 ms 135160 KB Output is correct
11 Correct 67 ms 135160 KB Output is correct
12 Correct 68 ms 135160 KB Output is correct
13 Correct 68 ms 135160 KB Output is correct
14 Correct 66 ms 135160 KB Output is correct
15 Correct 67 ms 135160 KB Output is correct
16 Correct 69 ms 135160 KB Output is correct
17 Correct 68 ms 135160 KB Output is correct
18 Correct 67 ms 135160 KB Output is correct
19 Correct 67 ms 135160 KB Output is correct
20 Correct 67 ms 135160 KB Output is correct
21 Correct 83 ms 135160 KB Output is correct
22 Correct 66 ms 135160 KB Output is correct
23 Correct 68 ms 135160 KB Output is correct
24 Correct 67 ms 135160 KB Output is correct
25 Correct 67 ms 135160 KB Output is correct
26 Correct 70 ms 135160 KB Output is correct
27 Correct 72 ms 135160 KB Output is correct
28 Correct 67 ms 135160 KB Output is correct
29 Correct 70 ms 135160 KB Output is correct
30 Correct 74 ms 135160 KB Output is correct
31 Correct 66 ms 135160 KB Output is correct
32 Correct 67 ms 135160 KB Output is correct
33 Correct 66 ms 135160 KB Output is correct
34 Correct 70 ms 135160 KB Output is correct
35 Correct 68 ms 135160 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 135160 KB Output is correct
2 Correct 67 ms 135288 KB Output is correct
3 Correct 68 ms 135160 KB Output is correct
4 Correct 65 ms 135160 KB Output is correct
5 Correct 72 ms 135160 KB Output is correct
6 Correct 65 ms 135160 KB Output is correct
7 Correct 67 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 74 ms 135160 KB Output is correct
10 Correct 67 ms 135160 KB Output is correct
11 Correct 67 ms 135160 KB Output is correct
12 Correct 68 ms 135160 KB Output is correct
13 Correct 68 ms 135160 KB Output is correct
14 Correct 66 ms 135160 KB Output is correct
15 Correct 67 ms 135160 KB Output is correct
16 Correct 69 ms 135160 KB Output is correct
17 Correct 68 ms 135160 KB Output is correct
18 Incorrect 235 ms 135160 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 68 ms 135160 KB Output is correct
2 Correct 67 ms 135288 KB Output is correct
3 Correct 68 ms 135160 KB Output is correct
4 Correct 65 ms 135160 KB Output is correct
5 Correct 72 ms 135160 KB Output is correct
6 Correct 65 ms 135160 KB Output is correct
7 Correct 67 ms 135160 KB Output is correct
8 Correct 73 ms 135160 KB Output is correct
9 Correct 74 ms 135160 KB Output is correct
10 Correct 67 ms 135160 KB Output is correct
11 Correct 67 ms 135160 KB Output is correct
12 Correct 68 ms 135160 KB Output is correct
13 Correct 68 ms 135160 KB Output is correct
14 Correct 66 ms 135160 KB Output is correct
15 Correct 67 ms 135160 KB Output is correct
16 Correct 69 ms 135160 KB Output is correct
17 Correct 68 ms 135160 KB Output is correct
18 Correct 67 ms 135160 KB Output is correct
19 Correct 67 ms 135160 KB Output is correct
20 Correct 67 ms 135160 KB Output is correct
21 Correct 83 ms 135160 KB Output is correct
22 Correct 66 ms 135160 KB Output is correct
23 Correct 68 ms 135160 KB Output is correct
24 Correct 67 ms 135160 KB Output is correct
25 Correct 67 ms 135160 KB Output is correct
26 Correct 70 ms 135160 KB Output is correct
27 Correct 72 ms 135160 KB Output is correct
28 Correct 67 ms 135160 KB Output is correct
29 Correct 70 ms 135160 KB Output is correct
30 Correct 74 ms 135160 KB Output is correct
31 Correct 66 ms 135160 KB Output is correct
32 Correct 67 ms 135160 KB Output is correct
33 Correct 66 ms 135160 KB Output is correct
34 Correct 70 ms 135160 KB Output is correct
35 Correct 68 ms 135160 KB Output is correct
36 Incorrect 235 ms 135160 KB Output isn't correct
37 Halted 0 ms 0 KB -