Submission #228903

#	Time	Username	Problem	Language	Result	Execution time	Memory
228903		blacktulip	Simple (info1cup19_simple)	C++17	0 / 100	174 ms	5172 KiB

subway

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 1000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 200005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t,tree[li*4],tree1[li*4];
int cev;
string s;
vector<int> v;

inline void build(int node,int start,int end){
	if(start>end)return ;
	if(start==end){tree[node]=a[start]*(a[start]%2==0?-1:1);return ;}
	build(node*2,start,mid),build(node*2+1,mid+1,end);
	tree[node]=max(tree[node*2],tree[node*2+1]);
}

inline void build1(int node,int start,int end){
	if(start>end)return ;
	if(start==end){tree1[node]=a[start]*(a[start]%2==0?-1:1);return ;}
	build1(node*2,start,mid),build1(node*2+1,mid+1,end);
	tree1[node]=min(tree1[node*2],tree1[node*2+1]);
}

inline int query(int node,int start,int end,int l,int r){
	if(start>end || start>r || end<l)return 0;
	if(start>=l && end<=r){return tree[node];}
	return max(query(node*2,start,mid,l,r),query(node*2+1,mid+1,end,l,r));
}

inline int query1(int node,int start,int end,int l,int r){
	if(start>end || start>r || end<l)return 0;
	if(start>=l && end<=r){return tree1[node];}
	return min(query1(node*2,start,mid,l,r),query1(node*2+1,mid+1,end,l,r));
}

int main(void){
	scanf("%d",&n);
	FOR{
		scanf("%d",&a[i]);
	}
	scanf("%d",&t);
	build(1,1,n);
	build1(1,1,n);
	while(t--){
		int type,x,y,val;
		scanf("%d %d %d",&type,&x,&y);
		if(type==1){
			int say=-query1(1,1,n,x,y);
			int say1=query(1,1,n,x,y);
			if(say%2==1)say=-1;
			if(say1%2==0)say1=-1;
			printf("%d %d\n",say,say1);
		}
	}
	return 0;
}

Compilation message (stderr)

subway.cpp: In function 'int main()':
subway.cpp:65:16: warning: unused variable 'val' [-Wunused-variable]
   int type,x,y,val;
                ^~~
subway.cpp:57:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
subway.cpp:59:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~
subway.cpp:61:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&t);
  ~~~~~^~~~~~~~~
subway.cpp:66:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d",&type,&x,&y);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 30
• Subtask 3: 0 / 40