제출 #94169

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
94169	2019-01-16 12:16:19	autumn_eel	Worst Reporter 3 (JOI18_worst_reporter3)	C++14	100 / 100	1116 ms	12816 KiB

worst_reporter3

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#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
using namespace std;
typedef long long ll;
int n;
ll d[600000];
ll a[600000];
int calc(ll x,ll T){
  ll l=-1,r=n+1;
  while(r-l>1){
    int t=(l+r)/2;
    if(-t+(T/a[t])*a[t]>=x)l=t;
    else r=t;
  }
  return r;
}
int main(){
  int q;scanf("%d%d",&n,&q);
  rep(i,n)scanf("%lld",&d[i+1]);
  a[0]=1;
  for(int i=1;i<=n;i++){
    ll t=(d[i]+a[i-1]-1)/a[i-1];
    a[i]=t*a[i-1];
  }
  rep(i,q){
    ll t,l,r;scanf("%lld%lld%lld",&t,&l,&r);
    printf("%d\n",calc(l,t)-calc(r+1,t));
 
 
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컴파일 시 표준 에러 (stderr) 메시지

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:21:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int q;scanf("%d%d",&n,&q);
        ~~~~~^~~~~~~~~~~~~~
worst_reporter3.cpp:22:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  rep(i,n)scanf("%lld",&d[i+1]);
          ~~~~~^~~~~~~~~~~~~~~~
worst_reporter3.cpp:29:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   ll t,l,r;scanf("%lld%lld%lld",&t,&l,&r);
            ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 81 / 81