Submission #373925

#	Time	Username	Problem	Language	Result	Execution time	Memory
373925		i_am_noob	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	19 / 100	438 ms	23848 KiB

worst_reporter3

#pragma GCC target("sse,sse2,sse3,ssse3,sse4,avx,avx2,avx512f")
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
using namespace std;

#define ll long long
#define ull unsigned long long
#define ld long double
#define rep(a) rep1(i,a)
#define rep1(i,a) rep2(i,0,a)
#define rep2(i,b,a) for(int i=(b); i<((int)(a)); i++)
#define rep3(i,b,a) for(int i=(b); i>=((int)(a)); i--)
#define all(a) a.begin(),a.end()
#define pii pair<int,int>
#define pb push_back
#define inf 1010000000
//#define inf 4000000000000000000
#define eps 1e-9
#define sz(a) ((int)a.size())
#define pow2(x) (1ll<<(x))
#define ceiling(a,b) (((a)+(b)-1)/(b))
#ifdef i_am_noob
#define bug(...) cerr << "#" << __LINE__ << ' ' << #__VA_ARGS__ << "- ", _do(__VA_ARGS__)
template<typename T> void _do(T && x) {static int cnt=0;cerr << x << endl;cnt++;if(cnt>1000) exit(0);}
template<typename T, typename ...S> void _do(T && x, S&&...y) {cerr << x << ", "; _do(y...);}
#else
#define bug(...) 826
#endif

inline char readchar(){
    const int maxn=1000000;
    static char buf[maxn],*p=buf,*q=buf;
    if(p==q&&(q=(p=buf)+fread(buf,1,maxn,stdin))==buf) return EOF;
    else return *p++;
}
inline int readint(){
    int c=readchar(),x=0,neg=0;
    while((c<'0'||c>'9')&&c!='-'&&c!=EOF) c=readchar();
    if(c=='-') neg=1,c=readchar();
    while(c>='0'&&c<='9') x=(x<<3)+(x<<1)+(c^'0'),c=readchar();
    return neg?-x:x;
}

const int Mod=1000000007,Mod2=998244353;
const int MOD=Mod;
const int maxn=500005;
//i_am_noob
int n,q,a[maxn],b[maxn];

signed main(){
    ios_base::sync_with_stdio(0),cin.tie(0);
    #ifdef i_am_noob
    freopen("input1.txt","r",stdin);
    freopen("output1.txt","w",stdout);
    freopen("output2.txt","w",stderr);
    #endif
    n=readint(),q=readint();
    rep(n) a[i]=readint();
    b[0]=1;
    rep(n) b[i+1]=(a[i]+b[i]-1)/b[i]*b[i];
    int t,x,y,mid,l,r,ans;
    while(q--){
        t=readint(),x=readint(),y=readint();
        l=0,r=n+1;
        while(l<r){
            mid=l+r>>1;
            if(-mid+t/b[mid]*b[mid]<=y) r=mid;
            else l=mid+1;
        }
        ans=-l;
        l=0,r=n+1;
        while(l<r){
            mid=l+r>>1;
            if(-mid+t/b[mid]*b[mid]<x) r=mid;
            else l=mid+1;
        }
        ans+=l;
        cout << ans << "\n";
    }
    return 0;
}

Compilation message (stderr)

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:66:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   66 |             mid=l+r>>1;
      |                 ~^~
worst_reporter3.cpp:73:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   73 |             mid=l+r>>1;
      |                 ~^~

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 0 / 81