Submission #99515

#	Time	Username	Problem	Language	Result	Execution time	Memory
99515		rzbt	Money (IZhO17_money)	C++14	100 / 100	344 ms	11160 KiB

money

#include <bits/stdc++.h>
#define MAXN 1000006


using namespace std;

int n;
int bit[MAXN];
vector<int> niz;
void dodaj(int p,int x){
    for(;p<MAXN;p+=(-p)&p)
        bit[p]+=x;
}
int dobij(int p){
    int z=0;
    for(;p>0;p-=(-p)&p)
        z+=bit[p];
    return z;
}
int res=0;


int main()
{
    scanf("%d", &n);
    for(int i=1;i<=n;i++){
        int t;
        scanf("%d", &t);
        if(niz.empty()){
            niz.push_back(t);
            res=1;
            continue;
        }
        if(t<niz.back() || dobij(t-1)>dobij(niz[0])){
            res++;
            for(auto x:niz)dodaj(x,1);
            niz.clear();
            niz.push_back(t);
        }else{
            niz.push_back(t);
        }

    }
    printf("%d",res);
    return 0;
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
money.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &t);
         ~~~~~^~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 16 / 16
• Subtask 3: 20 / 20
• Subtask 4: 55 / 55