Submission #959141

#	Time	Username	Problem	Language	Result	Execution time	Memory
959141		berr	Cop and Robber (BOI14_coprobber)	C++17	Compilation error	0 ms	0 KiB

coprobber

int pos;
map<array<int, 2>, int> mp;
int state[500][500][2];
vector<vector<int>> g(500);

int calc(int x, int y, int player){
    if(x==y&&player==0) return state[x][y][player]=x;
    else if(x==y)return state[x][y][player]=-1;
    if(state[x][y][player]!=-2)return state[x][y][player];
  

    if(player==0){
        int c=0;
        state[x][y][player]=-1; //-1 means holding 

        for(auto i: g[x]){
            if(calc(i, y, 1)==-1){
                state[x][y][0]=i;
                c++;
            }
        }

        if(calc(x, y, 1)==-1){
            state[x][y][0]=x;
            c++;
        }

        if(!c) state[x][y][player]=-1;

    }
    else{
        int c=0;    
        state[x][y][player]=0;

        for(auto i: g[y]){
            if(calc(x, i, 0)==-1){
                state[x][y][1]=i;
                c++;
            }
        }

        if(!c){
            state[x][y][player]=-1;
            for(auto i: g[x]){
                for(auto l: g[y])
                state[i][l][0]=x;
            }
                 for(auto l: g[y])
                state[x][l][0]=x;
        }

    }

    return state[x][y][player];
};

int start(int n, bool a[MAX_N][MAX_N]) {


    for(int i=0; i<n; i++){
        for(int l=0; l<n; l++){
            state[i][l][0]=-2; 
            state[i][l][1]=-2;
            if(a[i][l]){
                g[i].push_back(l);
            }
        }
    }

    for(int i=0; i<n; i++){
        int flag=1;
        for(int l=0; l<n; l++){
            if(calc(i, l, 1)!=-1){
                flag=0;
            }
        }
        if(flag) return pos=i;
    }

    return -1;
}

int nextMove(int R) {
    return pos = calc(pos, R, 0);
} 

Compilation message (stderr)

coprobber.cpp:2:1: error: 'map' does not name a type
    2 | map<array<int, 2>, int> mp;
      | ^~~
coprobber.cpp:4:1: error: 'vector' does not name a type
    4 | vector<vector<int>> g(500);
      | ^~~~~~
coprobber.cpp: In function 'int calc(int, int, int)':
coprobber.cpp:16:21: error: 'g' was not declared in this scope
   16 |         for(auto i: g[x]){
      |                     ^
coprobber.cpp:35:21: error: 'g' was not declared in this scope
   35 |         for(auto i: g[y]){
      |                     ^
coprobber.cpp:44:25: error: 'g' was not declared in this scope
   44 |             for(auto i: g[x]){
      |                         ^
coprobber.cpp:48:30: error: 'g' was not declared in this scope
   48 |                  for(auto l: g[y])
      |                              ^
coprobber.cpp: At global scope:
coprobber.cpp:57:25: error: 'MAX_N' was not declared in this scope
   57 | int start(int n, bool a[MAX_N][MAX_N]) {
      |                         ^~~~~
coprobber.cpp:57:32: error: 'MAX_N' was not declared in this scope
   57 | int start(int n, bool a[MAX_N][MAX_N]) {
      |                                ^~~~~
coprobber.cpp: In function 'int start(...)':
coprobber.cpp:60:20: error: 'n' was not declared in this scope
   60 |     for(int i=0; i<n; i++){
      |                    ^
coprobber.cpp:64:16: error: 'a' was not declared in this scope
   64 |             if(a[i][l]){
      |                ^
coprobber.cpp:65:17: error: 'g' was not declared in this scope
   65 |                 g[i].push_back(l);
      |                 ^
coprobber.cpp:70:20: error: 'n' was not declared in this scope
   70 |     for(int i=0; i<n; i++){
      |                    ^