Submission #431830

#	Time	Username	Problem	Language	Result	Execution time	Memory
431830		nvmdava	Land of the Rainbow Gold (APIO17_rainbow)	C++17	Compilation error	0 ms	0 KiB

rainbow

#include "rainbow.h"
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second

const int N = 200005;

struct Node{
    Node *l = NULL, *r = NULL;
    ll a;
    Node* update(int L, int R, int x){
        Node* res = new Node();
        res -> l = l;
        res -> r = r;
        res -> a = a;
        ++res -> a;
        if(L == R)
            return res;
        
        int m = (L + R) >> 1;
        if(x <= m){
            if(l == NULL)
                l = new Node();
            res -> l = l -> update(L, m, x);
        } else {
            if(r == NULL)
                r = new Node();
            res -> r = r -> update(m + 1, R, x);
        }
        return res;
    }
    ll query(int L, int R, int le, int ri){
        if(R < le || L > ri)
            return 0;
        if(le <= L && R <= ri)
            return a;
        int m = (L + R) >> 1;

        return (l == NULL ? 0 : l -> query(L, m, le, ri)) + (r == NULL ? 0 : r -> query(m + 1, R, le, ri));
    }
};

struct Grid{
    Node* seg[N];
    void build(set<pair<int, int> >& v){
        seg[0] = new Node();
        auto it = v.begin();
        for(int i = 1; i < N; ++i){
            seg[i] = seg[i - 1];
            while(it != v.end() && it -> ff == i){
                seg[i] = seg[i] -> update(1, N, it -> ss);
                ++it;
            }
        }
    }
    ll query(int x1, int y1, int x2, int y2){
        if(x1 > x2 || y1 > y2) return 0; 
        return seg[x2] -> query(1, N, y1, y2) - seg[x1 - 1] -> query(1, N, y1, y2);
    }
} riv, dot, lix, liy;

void init(int R, int C, int sr, int sc, int M, char *S) {
    set<pair<int, int> > rivs, dots, lixs, liys;
    rivs.insert({sr, sc});
    for(int i = 0; i < M; ++i){
        if(S[i] == 'N')
            --sr;
        if(S[i] == 'E')
            ++sc;
        if(S[i] == 'S')
            ++sr;
        if(S[i] == 'W')
            --sc;
        rivs.insert({sr, sc});
    }
    for(auto& a : rivs){
        dots.insert({a.ff, a.ss});
        dots.insert({a.ff, a.ss + 1});
        dots.insert({a.ff + 1, a.ss + 1});
        dots.insert({a.ff + 1, a.ss});
        lixs.insert({a.ff, a.ss});
        lixs.insert({a.ff, a.ss + 1});
        liys.insert({a.ff, a.ss});
        liys.insert({a.ff + 1, a.ss});
    }
    riv.build(rivs);
    dot.build(dots);
    lix.build(lixs);
    liy.build(liys);
}

int colour(int x1, int y1, int x2, int y2) {
    ll t = riv.query(x1, y1, x2, y2);
    if(t == 0) return 1;
    return 1 - riv.query(x1, y1, x2, y2) - dot.query(x1 + 1, y1 + 1, x2, y2) + lix.query(x1, y1 + 1, x2, y2) + liy.query(x1 + 1, y1, x2, y2);
}

Compilation message (stderr)

rainbow.cpp:11:5: error: 'll' does not name a type
   11 |     ll a;
      |     ^~
rainbow.cpp:33:5: error: 'll' does not name a type
   33 |     ll query(int L, int R, int le, int ri){
      |     ^~
rainbow.cpp: In member function 'Node* Node::update(int, int, int)':
rainbow.cpp:16:16: error: 'struct Node' has no member named 'a'
   16 |         res -> a = a;
      |                ^
rainbow.cpp:16:20: error: 'a' was not declared in this scope
   16 |         res -> a = a;
      |                    ^
rainbow.cpp:17:18: error: 'struct Node' has no member named 'a'
   17 |         ++res -> a;
      |                  ^
rainbow.cpp: At global scope:
rainbow.cpp:57:5: error: 'll' does not name a type
   57 |     ll query(int x1, int y1, int x2, int y2){
      |     ^~
rainbow.cpp: In function 'int colour(int, int, int, int)':
rainbow.cpp:94:5: error: 'll' was not declared in this scope
   94 |     ll t = riv.query(x1, y1, x2, y2);
      |     ^~
rainbow.cpp:95:8: error: 't' was not declared in this scope
   95 |     if(t == 0) return 1;
      |        ^
rainbow.cpp:96:20: error: 'struct Grid' has no member named 'query'
   96 |     return 1 - riv.query(x1, y1, x2, y2) - dot.query(x1 + 1, y1 + 1, x2, y2) + lix.query(x1, y1 + 1, x2, y2) + liy.query(x1 + 1, y1, x2, y2);
      |                    ^~~~~
rainbow.cpp:96:48: error: 'struct Grid' has no member named 'query'
   96 |     return 1 - riv.query(x1, y1, x2, y2) - dot.query(x1 + 1, y1 + 1, x2, y2) + lix.query(x1, y1 + 1, x2, y2) + liy.query(x1 + 1, y1, x2, y2);
      |                                                ^~~~~
rainbow.cpp:96:84: error: 'struct Grid' has no member named 'query'
   96 |     return 1 - riv.query(x1, y1, x2, y2) - dot.query(x1 + 1, y1 + 1, x2, y2) + lix.query(x1, y1 + 1, x2, y2) + liy.query(x1 + 1, y1, x2, y2);
      |                                                                                    ^~~~~
rainbow.cpp:96:116: error: 'struct Grid' has no member named 'query'
   96 |     return 1 - riv.query(x1, y1, x2, y2) - dot.query(x1 + 1, y1 + 1, x2, y2) + lix.query(x1, y1 + 1, x2, y2) + liy.query(x1 + 1, y1, x2, y2);
      |                                                                                                                    ^~~~~