Submission #564993

#	Time	Username	Problem	Language	Result	Execution time	Memory
564993		birthdaycake	Saveit (IOI10_saveit)	C++14	Compilation error	0 ms	0 KiB

encoder

int dis[1001][37];
vector<int>adj[1001];




void reset(int n, int h){
    for(int i = 0; i < n; i++){
        adj[i].clear();
        for(int j = 0; j < h; j++) dis[i][j] = 1e18;
    }
}


int encode_bit(int x){
    return x;
}


void encode(int n, int h, int p, int a[], int b[]){
    
    
    reset(n,h);
    
    
    for(int i = 0; i < p; i++){
        adj[a[i]].push_back(b[i]);
        adj[b[i]].push_back(a[i]);
    }
    
    for(int i = 0; i < h; i++){
        dis[i][i] = 0;
        set<pair<int,int>>bfs;
        bfs.insert({0,i});
        while(bfs.size()){
            auto x = *bfs.begin();
            bfs.erase(x);
            if(dis[x.second][i] < x.first) continue;
            for(auto s:adj[x.second]){
                if(dis[x.second] + 1 < dis[s]){
                    dis[s] = dis[x.second] + 1;
                    bfs.insert({dis[x.second] + 1, s});
                }
            }
        }
    }
    
    for(int i = 0; i < n; i++){
        for(int j = 0; j < h; j++){
            for(int k = 0; k < 10; k++){
                if(dis[i][j] & (1 << k)) encode_bit(1);
                else encode_bit(0);
            }
        }
    }
    
    
    
    
}

decoder

int dis[1001][37];

void reset(int n, int h){
    for(int i = 0; i < n; i++){
        for(int j = 0; j < h; j++) dis[i][j] = 0;
    }
}


int decode(int n, int h){
    
    reset(n,h);
    
    
    for(int i = 0; i < n; i++){
        for(int j = 0; j < j; j++){
            for(int k = 0; k < 10; k++){
                dis[i][j] += (1 << decode_bit());
            }
        }
    }
    
    for(int i = 0; i < n; i++){
        for(int j = 0; j < h; j++){
            hops(j,i,dis[i][j]);
        }
    }
}

Compilation message (stderr)

encoder.cpp:2:1: error: 'vector' does not name a type
    2 | vector<int>adj[1001];
      | ^~~~~~
encoder.cpp: In function 'void reset(int, int)':
encoder.cpp:9:9: error: 'adj' was not declared in this scope
    9 |         adj[i].clear();
      |         ^~~
encoder.cpp:10:48: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
   10 |         for(int j = 0; j < h; j++) dis[i][j] = 1e18;
      |                                                ^~~~
encoder.cpp: In function 'void encode(int, int, int, int*, int*)':
encoder.cpp:27:9: error: 'adj' was not declared in this scope
   27 |         adj[a[i]].push_back(b[i]);
      |         ^~~
encoder.cpp:33:9: error: 'set' was not declared in this scope; did you mean 'reset'?
   33 |         set<pair<int,int>>bfs;
      |         ^~~
      |         reset
encoder.cpp:33:13: error: 'pair' was not declared in this scope
   33 |         set<pair<int,int>>bfs;
      |             ^~~~
encoder.cpp:33:18: error: expected primary-expression before 'int'
   33 |         set<pair<int,int>>bfs;
      |                  ^~~
encoder.cpp:34:9: error: 'bfs' was not declared in this scope
   34 |         bfs.insert({0,i});
      |         ^~~
encoder.cpp:39:24: error: 'adj' was not declared in this scope
   39 |             for(auto s:adj[x.second]){
      |                        ^~~

decoder.cpp: In function 'int decode(int, int)':
decoder.cpp:16:26: warning: self-comparison always evaluates to false [-Wtautological-compare]
   16 |         for(int j = 0; j < j; j++){
      |                        ~ ^ ~
decoder.cpp:18:36: error: 'decode_bit' was not declared in this scope; did you mean 'decode'?
   18 |                 dis[i][j] += (1 << decode_bit());
      |                                    ^~~~~~~~~~
      |                                    decode
decoder.cpp:25:13: error: 'hops' was not declared in this scope
   25 |             hops(j,i,dis[i][j]);
      |             ^~~~
decoder.cpp:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
   28 | }
      | ^