Submission #136664

#	Time	Username	Problem	Language	Result	Execution time	Memory
136664		turbat	Monkey and Apple-trees (IZhO12_apple)	C++14	Compilation error	0 ms	0 KiB

apple

    #include <bits/stdc++.h>
    using namespace std; 
    #define N 1000000000
    int m, x, y, c, d, s;
    struct segment{
    	segment *l;
    	segment *r;
    	int cnt = 0;
    };
    void update (segment *seg, int L, int R, int l, int r){
    	if (seg->cnt == R - L + 1) return;
    	if (L > r || R < l) return;
    	if (l <= L &&  R <= r){
    		seg->cnt = R - L + 1;
    		return;
    	}
    	int mid = (L + R)/2;
    	if (!seg->l) seg->l = new segment();
    	update(seg->l, L, mid, l, r);
    	if (!seg->r) seg->r = new segment();
    	update(seg->r, mid + 1, R, l, r);
    	seg->cnt = seg->l->cnt + seg->r->cnt;
    }
    int query(segment *seg, int L, int R, int l, int r){
    	if (L > r || R < l) return 0;
    	if (l <= L &&  R <= r) return seg->cnt;
    	int mid = (L + R)/2, ans = 0;
    	if (seg->l) ans = query(seg->l, L, mid, l, r);
    	if (seg->r) ans += query(seg->r, mid + 1, R, l, r);	
    	return ans;
    }
    int main (){
    	cin >> m;	
    	while (m--){
    		cin >> d>> x>> y;
    		if (d == 2) update(root, 1, N, x + c, y + c);
    		else {
    			c = query(root, 1, N, x + c, y + c);
    			cout << c<< endl;
    		}
    	}
    }

Compilation message (stderr)

apple.cpp: In function 'int main()':
apple.cpp:36:26: error: 'root' was not declared in this scope
       if (d == 2) update(root, 1, N, x + c, y + c);
                          ^~~~
apple.cpp:36:26: note: suggested alternative: 'rint'
       if (d == 2) update(root, 1, N, x + c, y + c);
                          ^~~~
                          rint
apple.cpp:38:18: error: 'root' was not declared in this scope
        c = query(root, 1, N, x + c, y + c);
                  ^~~~
apple.cpp:38:18: note: suggested alternative: 'rint'
        c = query(root, 1, N, x + c, y + c);
                  ^~~~
                  rint