oj.uz

Submission #243225

# Submission time Handle Problem Language Result Execution time Memory
243225 2020-06-30T15:09:27 Z LittleFlowers__ Duathlon (APIO18_duathlon) C++17
0 / 100
 1000 ms 788632 KB 
#include <bits/stdc++.h>
using namespace std;
#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int l,int r){return l+rng()%(r-l+1);}
#define fasty ios_base::sync_with_stdio(0),cin.tie(0);
#define forinc(a,b,c) for(int a=b,_c=c;a<=_c;++a)
#define fordec(a,b,c) for(int a=b,_c=c;a>=_c;--a)
#define forv(a,b) for(auto&a:b)
#define fi first
#define se second
#define pb push_back
#define ii pair<int,int>
#define mt make_tuple
#define all(a) a.begin(),a.end()
#define reset(f, x) memset(f, x, sizeof(f))
#define bit(x,i) ((x>>(i-1))&1)
#define on(x,i) (x|(1ll<<(i-1)))
#define off(x,i) (x&~(1<<(i-1)))
#define gg exit(0);

const int N=55;

int n,m,top,cur;
int dd[N],w[N];
vector<int> ad[N];

using unx=tuple<int,int,int>;
vector<unx> val;

void dfs(int u){
    if(u>cur)
    forinc(i,2,top)
        val.pb(mt(cur,w[i],u));
    dd[u]=1;
    w[++top]=u;
    forv(v,ad[u]) if(!dd[v]) dfs(v);
    dd[u]=0;
    top--;
}

main(){
    #define task "3"
    if(fopen(task".inp","r")){
        freopen(task".inp","r",stdin);
        //freopen(task".out","w",stdout);
    }

    n=in,m=in;
    forinc(i,1,m){
        int u=in,v=in;
        ad[u].pb(v);
        ad[v].pb(u);
    }

    forinc(i,1,n){
        dfs(cur=i);
    }

    sort(all(val)), val.erase(unique(all(val)),val.end());
    cout<<val.size()*2;
}

Compilation message

count_triplets.cpp:42:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
count_triplets.cpp: In function 'int main()':
count_triplets.cpp:45:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(task".inp","r",stdin);
         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 6 ms 832 KB Output is correct
9 Correct 104 ms 12780 KB Output is correct
10 Execution timed out 1117 ms 788632 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 6 ms 832 KB Output is correct
9 Correct 104 ms 12780 KB Output is correct
10 Execution timed out 1117 ms 788632 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 384 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 384 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 5 ms 384 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 6 ms 832 KB Output is correct
9 Correct 104 ms 12780 KB Output is correct
10 Execution timed out 1117 ms 788632 KB Time limit exceeded
11 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 4 ms 256 KB Output is correct
6 Correct 5 ms 256 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 6 ms 832 KB Output is correct
9 Correct 104 ms 12780 KB Output is correct
10 Execution timed out 1117 ms 788632 KB Time limit exceeded
11 Halted 0 ms 0 KB -