oj.uz

Submission #336270

# Submission time Handle Problem Language Result Execution time Memory
336270 2020-12-15T03:39:28 Z beksultan04 Bigger segments (IZhO19_segments) C++14
13 / 100
 1500 ms 58476 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 = 1011589,INF=1e9+7;
int q[N],ct[N],ans,n,h2[N],h3[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 x2 = j+(sum*31)%N;
    x2%=N;

    int x3 = j+(sum*41)%N;
    x3%=N;

    int x4 = cnt+j*57+(sum*57*57)%N;
    x4%=N;


    if (h2[x2]==h3[x3] && h4[x4]==h3[x3] && h2[x2] == 1){
        ret dp[j];
    }
    h2[x2] =h3[x3] = 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]=h2[i]=h3[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:41:15: 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]
   41 |     for (i=0;i<v[j].size();++i){
      |              ~^~~~~~~~~~~~
segments.cpp: At global scope:
segments.cpp:49:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   49 | 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:51:5: note: in expansion of macro 'scan1'
   51 |     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:54:9: note: in expansion of macro 'scan1'
   54 |         scan1(q[i])
      |         ^~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47852 KB Output is correct
2 Correct 27 ms 47980 KB Output is correct
3 Correct 28 ms 47852 KB Output is correct
4 Correct 28 ms 47980 KB Output is correct
5 Correct 28 ms 47980 KB Output is correct
6 Correct 28 ms 48492 KB Output is correct
7 Correct 30 ms 48236 KB Output is correct
8 Correct 28 ms 47980 KB Output is correct
9 Correct 28 ms 48108 KB Output is correct
10 Correct 28 ms 48492 KB Output is correct
11 Correct 30 ms 48236 KB Output is correct
12 Correct 28 ms 47980 KB Output is correct
13 Correct 28 ms 48236 KB Output is correct
14 Correct 28 ms 48492 KB Output is correct
15 Correct 28 ms 48364 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47852 KB Output is correct
2 Correct 27 ms 47980 KB Output is correct
3 Correct 28 ms 47852 KB Output is correct
4 Correct 28 ms 47980 KB Output is correct
5 Correct 28 ms 47980 KB Output is correct
6 Correct 28 ms 48492 KB Output is correct
7 Correct 30 ms 48236 KB Output is correct
8 Correct 28 ms 47980 KB Output is correct
9 Correct 28 ms 48108 KB Output is correct
10 Correct 28 ms 48492 KB Output is correct
11 Correct 30 ms 48236 KB Output is correct
12 Correct 28 ms 47980 KB Output is correct
13 Correct 28 ms 48236 KB Output is correct
14 Correct 28 ms 48492 KB Output is correct
15 Correct 28 ms 48364 KB Output is correct
16 Correct 31 ms 52460 KB Output is correct
17 Correct 992 ms 58476 KB Output is correct
18 Execution timed out 1581 ms 58348 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47852 KB Output is correct
2 Correct 27 ms 47980 KB Output is correct
3 Correct 28 ms 47852 KB Output is correct
4 Correct 28 ms 47980 KB Output is correct
5 Correct 28 ms 47980 KB Output is correct
6 Correct 28 ms 48492 KB Output is correct
7 Correct 30 ms 48236 KB Output is correct
8 Correct 28 ms 47980 KB Output is correct
9 Correct 28 ms 48108 KB Output is correct
10 Correct 28 ms 48492 KB Output is correct
11 Correct 30 ms 48236 KB Output is correct
12 Correct 28 ms 47980 KB Output is correct
13 Correct 28 ms 48236 KB Output is correct
14 Correct 28 ms 48492 KB Output is correct
15 Correct 28 ms 48364 KB Output is correct
16 Correct 31 ms 52460 KB Output is correct
17 Correct 992 ms 58476 KB Output is correct
18 Execution timed out 1581 ms 58348 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47852 KB Output is correct
2 Correct 27 ms 47980 KB Output is correct
3 Correct 28 ms 47852 KB Output is correct
4 Correct 28 ms 47980 KB Output is correct
5 Correct 28 ms 47980 KB Output is correct
6 Correct 28 ms 48492 KB Output is correct
7 Correct 30 ms 48236 KB Output is correct
8 Correct 28 ms 47980 KB Output is correct
9 Correct 28 ms 48108 KB Output is correct
10 Correct 28 ms 48492 KB Output is correct
11 Correct 30 ms 48236 KB Output is correct
12 Correct 28 ms 47980 KB Output is correct
13 Correct 28 ms 48236 KB Output is correct
14 Correct 28 ms 48492 KB Output is correct
15 Correct 28 ms 48364 KB Output is correct
16 Correct 31 ms 52460 KB Output is correct
17 Correct 992 ms 58476 KB Output is correct
18 Execution timed out 1581 ms 58348 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 47852 KB Output is correct
2 Correct 27 ms 47980 KB Output is correct
3 Correct 28 ms 47852 KB Output is correct
4 Correct 28 ms 47980 KB Output is correct
5 Correct 28 ms 47980 KB Output is correct
6 Correct 28 ms 48492 KB Output is correct
7 Correct 30 ms 48236 KB Output is correct
8 Correct 28 ms 47980 KB Output is correct
9 Correct 28 ms 48108 KB Output is correct
10 Correct 28 ms 48492 KB Output is correct
11 Correct 30 ms 48236 KB Output is correct
12 Correct 28 ms 47980 KB Output is correct
13 Correct 28 ms 48236 KB Output is correct
14 Correct 28 ms 48492 KB Output is correct
15 Correct 28 ms 48364 KB Output is correct
16 Correct 31 ms 52460 KB Output is correct
17 Correct 992 ms 58476 KB Output is correct
18 Execution timed out 1581 ms 58348 KB Time limit exceeded
19 Halted 0 ms 0 KB -