oj.uz

답안 #875445

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
875445 2023-11-19T17:35:29 Z imarn Vudu (COCI15_vudu) C++14
140 / 140
 174 ms 15964 KB 
#include<stdio.h>
#define ll long long
using namespace std;
const int N=1e6+5;
ll a[N]{0};
ll cnt=0;
void dac(int l,int r){
    if(l>=r)return;
    int m=(l+r)>>1;
    dac(l,m);dac(m+1,r);
    int sz1=m-l+1,sz2=r-m;
    ll le[sz1],re[sz2];
    for(int i=0;i<sz1;i++)le[i]=a[i+l];
    for(int i=0;i<sz2;i++)re[i]=a[m+1+i];
    int li=0,ri=0,mi=l;
    while(li<sz1&&ri<sz2){
        if(le[li]<=re[ri])cnt+=sz2-ri,a[mi++]=le[li++];
        else a[mi++]=re[ri++];
    }while(li<sz1)a[mi++]=le[li++];
    while(ri<sz2)a[mi++]=re[ri++];
}
int main(){
    int n;scanf("%d",&n);
    for(int i=1;i<=n;i++)scanf("%lld",&a[i]);
    ll p;scanf("%lld",&p);
    for(int i=1;i<=n;i++)a[i]+=a[i-1]-p;
    dac(0,n);printf("%lld",cnt);
}

Compilation message

vudu.cpp: In function 'int main()':
vudu.cpp:23:16: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     int n;scanf("%d",&n);
      |           ~~~~~^~~~~~~~~
vudu.cpp:24:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     for(int i=1;i<=n;i++)scanf("%lld",&a[i]);
      |                          ~~~~~^~~~~~~~~~~~~~
vudu.cpp:25:15: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     ll p;scanf("%lld",&p);
      |          ~~~~~^~~~~~~~~~~

Subtask #1
140.0 / 140.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 162 ms 15336 KB Output is correct
5 Correct 96 ms 9840 KB Output is correct
6 Correct 144 ms 14164 KB Output is correct
7 Correct 144 ms 14676 KB Output is correct
8 Correct 136 ms 13648 KB Output is correct
9 Correct 174 ms 15964 KB Output is correct
10 Correct 147 ms 14412 KB Output is correct