Submission #1233201

#	Time	Username	Problem	Language	Result	Execution time	Memory
1233201		hq77	Vision Program (IOI19_vision)	C++20	Compilation error	0 ms	0 KiB

vision

int dis(int a, int b, int w){
    int x1,y1,x2,y2;
    x1=a/w,y1=a%w;
    x2=b/w,y2=b%w;
    return abs(x1-x2)+abs(y1-y2);
}
void construct_network(int h, int w, int k){
    int cnt=0;
    vector<int>check;
    for(int i=0;i<h;i++){
        for(int j=0;j<w;j++){
            if(dis(i,j,w)==k){
                vector<int>x={i,j};
                add_and(x);
                check.push_back(h*w+cnt);
                cnt++;
            }
        }
    }
    add_or(check);
}

Compilation message (stderr)

vision.cpp: In function 'int dis(int, int, int)':
vision.cpp:5:12: error: 'abs' was not declared in this scope
    5 |     return abs(x1-x2)+abs(y1-y2);
      |            ^~~
vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:9:5: error: 'vector' was not declared in this scope
    9 |     vector<int>check;
      |     ^~~~~~
vision.cpp:9:12: error: expected primary-expression before 'int'
    9 |     vector<int>check;
      |            ^~~
vision.cpp:13:24: error: expected primary-expression before 'int'
   13 |                 vector<int>x={i,j};
      |                        ^~~
vision.cpp:14:25: error: 'x' was not declared in this scope
   14 |                 add_and(x);
      |                         ^
vision.cpp:14:17: error: 'add_and' was not declared in this scope
   14 |                 add_and(x);
      |                 ^~~~~~~
vision.cpp:15:17: error: 'check' was not declared in this scope
   15 |                 check.push_back(h*w+cnt);
      |                 ^~~~~
vision.cpp:20:12: error: 'check' was not declared in this scope
   20 |     add_or(check);
      |            ^~~~~
vision.cpp:20:5: error: 'add_or' was not declared in this scope
   20 |     add_or(check);
      |     ^~~~~~