oj.uz

Submission #336300

# Submission time Handle Problem Language Result Execution time Memory
336300 2020-12-15T03:56:15 Z beksultan04 Bigger segments (IZhO19_segments) C++14
13 / 100
 393 ms 38432 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define OK puts("OK");
#define fr first
#define sc second
#define ret return
#define scan1(a) scanf("%lld",&a);
#define scan2(a,b) scanf("%lld %lld",&a, &b);
#define scan3(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
const int N = 904523,INF=1e9+7;
int q[N],ans,n,h4[N],dp[N];
vector <pii > v[N];
int rec(int j,int sum,int cnt){
    int i;
    if (j > n){
        ret cnt;
    }


    int x4 = cnt+(sum*41)%N+(j*41*41)%N;
    x4%=N;
    if (h4[x4]==1){
        ret dp[x4];
    }
    h4[x4] = 1;
    int mx=0;
    for (i=0;i<v[j].size();++i){
        if (v[j][i].fr >= sum){
            mx = max(mx,rec(v[j][i].sc+1,v[j][i].fr,cnt+1));
        }
    }
    ret dp[x4]=max(mx,dp[x4]);

}
main(){
    int i,j;
    scan1(n)
    for (i=0;i<N;++i)h4[i]=-1;
    for (i=1;i<=n;++i){
        scan1(q[i])
    }
    for (i=1;i<=n;++i){
        int sum=0;
        for (j=i;j<=n;++j){
            sum+=q[j];
            v[i].pb({sum,j});
        }
    }

    cout <<rec(1,0,0);;
}

Compilation message

segments.cpp: In function 'long long int rec(long long int, long long int, long long int)':
segments.cpp:33:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for (i=0;i<v[j].size();++i){
      |              ~^~~~~~~~~~~~
segments.cpp: At global scope:
segments.cpp:41:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   41 | main(){
      |      ^
segments.cpp: In function 'int main()':
segments.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
segments.cpp:43:5: note: in expansion of macro 'scan1'
   43 |     scan1(n)
      |     ^~~~~
segments.cpp:9:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 | #define scan1(a) scanf("%lld",&a);
      |                  ~~~~~^~~~~~~~~~~
segments.cpp:46:9: note: in expansion of macro 'scan1'
   46 |         scan1(q[i])
      |         ^~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 28652 KB Output is correct
2 Correct 18 ms 28652 KB Output is correct
3 Correct 21 ms 28652 KB Output is correct
4 Correct 21 ms 28780 KB Output is correct
5 Correct 19 ms 29420 KB Output is correct
6 Correct 19 ms 29292 KB Output is correct
7 Correct 19 ms 28908 KB Output is correct
8 Correct 18 ms 28780 KB Output is correct
9 Correct 18 ms 28908 KB Output is correct
10 Correct 19 ms 29164 KB Output is correct
11 Correct 18 ms 28780 KB Output is correct
12 Correct 19 ms 28780 KB Output is correct
13 Correct 18 ms 28780 KB Output is correct
14 Correct 19 ms 28908 KB Output is correct
15 Correct 19 ms 28908 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 28652 KB Output is correct
2 Correct 18 ms 28652 KB Output is correct
3 Correct 21 ms 28652 KB Output is correct
4 Correct 21 ms 28780 KB Output is correct
5 Correct 19 ms 29420 KB Output is correct
6 Correct 19 ms 29292 KB Output is correct
7 Correct 19 ms 28908 KB Output is correct
8 Correct 18 ms 28780 KB Output is correct
9 Correct 18 ms 28908 KB Output is correct
10 Correct 19 ms 29164 KB Output is correct
11 Correct 18 ms 28780 KB Output is correct
12 Correct 19 ms 28780 KB Output is correct
13 Correct 18 ms 28780 KB Output is correct
14 Correct 19 ms 28908 KB Output is correct
15 Correct 19 ms 28908 KB Output is correct
16 Correct 24 ms 33260 KB Output is correct
17 Incorrect 393 ms 38432 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 28652 KB Output is correct
2 Correct 18 ms 28652 KB Output is correct
3 Correct 21 ms 28652 KB Output is correct
4 Correct 21 ms 28780 KB Output is correct
5 Correct 19 ms 29420 KB Output is correct
6 Correct 19 ms 29292 KB Output is correct
7 Correct 19 ms 28908 KB Output is correct
8 Correct 18 ms 28780 KB Output is correct
9 Correct 18 ms 28908 KB Output is correct
10 Correct 19 ms 29164 KB Output is correct
11 Correct 18 ms 28780 KB Output is correct
12 Correct 19 ms 28780 KB Output is correct
13 Correct 18 ms 28780 KB Output is correct
14 Correct 19 ms 28908 KB Output is correct
15 Correct 19 ms 28908 KB Output is correct
16 Correct 24 ms 33260 KB Output is correct
17 Incorrect 393 ms 38432 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 28652 KB Output is correct
2 Correct 18 ms 28652 KB Output is correct
3 Correct 21 ms 28652 KB Output is correct
4 Correct 21 ms 28780 KB Output is correct
5 Correct 19 ms 29420 KB Output is correct
6 Correct 19 ms 29292 KB Output is correct
7 Correct 19 ms 28908 KB Output is correct
8 Correct 18 ms 28780 KB Output is correct
9 Correct 18 ms 28908 KB Output is correct
10 Correct 19 ms 29164 KB Output is correct
11 Correct 18 ms 28780 KB Output is correct
12 Correct 19 ms 28780 KB Output is correct
13 Correct 18 ms 28780 KB Output is correct
14 Correct 19 ms 28908 KB Output is correct
15 Correct 19 ms 28908 KB Output is correct
16 Correct 24 ms 33260 KB Output is correct
17 Incorrect 393 ms 38432 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 28652 KB Output is correct
2 Correct 18 ms 28652 KB Output is correct
3 Correct 21 ms 28652 KB Output is correct
4 Correct 21 ms 28780 KB Output is correct
5 Correct 19 ms 29420 KB Output is correct
6 Correct 19 ms 29292 KB Output is correct
7 Correct 19 ms 28908 KB Output is correct
8 Correct 18 ms 28780 KB Output is correct
9 Correct 18 ms 28908 KB Output is correct
10 Correct 19 ms 29164 KB Output is correct
11 Correct 18 ms 28780 KB Output is correct
12 Correct 19 ms 28780 KB Output is correct
13 Correct 18 ms 28780 KB Output is correct
14 Correct 19 ms 28908 KB Output is correct
15 Correct 19 ms 28908 KB Output is correct
16 Correct 24 ms 33260 KB Output is correct
17 Incorrect 393 ms 38432 KB Output isn't correct
18 Halted 0 ms 0 KB -