Submission #27003

#	Time	Username	Problem	Language	Result	Execution time	Memory
27003		noobprogrammer	Brunhilda’s Birthday (BOI13_brunhilda)	C++14	5.56 / 100	443 ms	262144 KiB

brunhilda

#include <bits/stdc++.h>
using namespace std ;

int n , m , pr[100010] , mx[10000010] , cnt[10000010] , ptr , dp[10000010] ;
vector<int> srt[1000010] ;
const int N = 1e6 ; 

int main(){
	// freopen("in.txt" , "r" , stdin) ;
	// freopen("out.txt" , "w" , stdout) ;
	scanf("%d%d" , &n,&m ) ;
	for(int i=0;i<n;i++) {
		scanf("%d" , pr+i) ;
		for(int j=0 ; j <= (int)1e7 ; j+=pr[i]) mx[j] = max(mx[j] , pr[i]) ;
	}
	srt[mx[0] - 1].push_back(1) ; cnt[1]++ ;
	int val = 1 ;
	for(int i=1;i<=N;i++){
		while(!cnt[val] && val <= 1e7 )	val++ ;
		dp[i] = val ;
		for(int v : srt[i]) cnt[v]-- ;
		srt[i].erase(srt[i].begin() , srt[i].end() ) ;
		if(dp[i] == 1e7+1) continue ;
		if(!mx[i]) continue ;
		srt[i+mx[i]-1].push_back(dp[i]+1) ; cnt[dp[i]+1]++ ;
	}
	for(int i=0;i<m;i++){
		scanf("%d" , &val) ;
		if(dp[val] == 1e7+1) printf("oo\n") ;
		else printf("%d\n" , dp[val] ) ;
	}
}

Compilation message (stderr)

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:11:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d" , &n,&m ) ;
                         ^
brunhilda.cpp:13:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d" , pr+i) ;
                      ^
brunhilda.cpp:28:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d" , &val) ;
                      ^

• Subtask 1: 5.555555555555555 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 60