Submission #964470

#	Time	Username	Problem	Language	Result	Execution time	Memory
964470		yellowtoad	Sprinkler (JOI22_sprinkler)	C++17	Compilation error	0 ms	0 KiB

sprinkler

#include <iostream>
#include <vector>
#define f first
#define s second
#define int long long
using namespace std;

int n, mod, a[200010], cnt;
pair<int,int> rng[200010];
vector<int> edge[200010], d[200010], node[200010];

void dfs(int u, int v, int depth) {
	rng[u].f = ++cnt;
	d[depth].push_back(u);
	for (int i = 0; i < edge[u].size(); i++) if (edge[u][i] != v) dfs(edge[u][i],u,depth+1);
	rng[u].s = cnt;
}

void build(int i, int id, int x, int y) {
	if (x == y) {
		node[i][id] = a[d[i][x]];
		return;
	}
	int mid = (x+y)/2;
	build(i,id*2,x,mid);
	build(i,id*2+1,mid+1,y);
	node[i][id] = 1;
}

void update(int i, int id, int x, int y, int l, int r, int val) {
	if ((l <= x) && (y <= r)) {
		
	}
}

signed main() {
	cin >> n >> mod;
	for (int i = 1; i < n; i++) {
		int u, v;
		cin >> u >> v;
		edge[u].push_back(v);
		edge[v].push_back(u);
	}
	for (int i = 1; i <= n; i++) cin >> a[i];
	dfs(1,0,1);
	for (int i = 1; i <= n; i++) {
		if (d[i].size()) {
			node[i].resize(d[i].size()*4+10);
			build(i,1,0,d[i].size()-1);
		}
	}
	cin >> test;
	while (test--) {
		int type, u, dis, val;
		cin >> type;
		if (type == 1) {
			cin >> u >> dis >> val;
		} else {
			cin >> u;
		}
	}
}

Compilation message (stderr)

sprinkler.cpp: In function 'void dfs(long long int, long long int, long long int)':
sprinkler.cpp:15:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for (int i = 0; i < edge[u].size(); i++) if (edge[u][i] != v) dfs(edge[u][i],u,depth+1);
      |                  ~~^~~~~~~~~~~~~~~~
sprinkler.cpp: In function 'int main()':
sprinkler.cpp:52:9: error: 'test' was not declared in this scope
   52 |  cin >> test;
      |         ^~~~