Submission #2873842


Source Code Expand

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

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

const ll MAX=1<<18;
const ll INF=0x3f3f3f3f3f3f3f;
ll a[MAX],n,ans;
int main(){
    ll k=0,u=0;
    scanf("%lld",&n);
    for(ll i=0;i<n;i++) scanf("%lld",&a[i]);
    u=0;
    for(ll i=0,t=1;i<n;i++,t*=-1){
        u+=a[i];
        if(t>0&&u<=0) k+=1-u,u=1;
        else if(t<0&&u>=0) k+=u+1,u=-1;
    }
    ans=k,u=0,k=0;
    for(ll i=0,t=-1;i<n;i++,t*=-1){
        u+=a[i];
        if(t>0&&u<=0) k+=1-u,u=1;
        else if(t<0&&u>=0) k+=u+1,u=-1;
    }
    ans=min(ans,k);
    printf("%lld\n",ans);
}

Submission Info

Submission Time
Task C - Sequence
User x0000ai
Language C++14 (GCC 5.4.1)
Score 300
Code Size 655 Byte
Status AC
Exec Time 14 ms
Memory 1024 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld",&n);
                     ^
./Main.cpp:14:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     for(ll i=0;i<n;i++) scanf("%lld",&a[i]);
                                            ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 18
Set Name Test Cases
Sample 00-00.txt, 00-01.txt, 00-02.txt
All 00-00.txt, 00-01.txt, 00-02.txt, 01-00.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt
Case Name Status Exec Time Memory
00-00.txt AC 1 ms 256 KB
00-01.txt AC 1 ms 256 KB
00-02.txt AC 1 ms 256 KB
01-00.txt AC 14 ms 1024 KB
01-01.txt AC 14 ms 1024 KB
01-02.txt AC 14 ms 1024 KB
01-03.txt AC 13 ms 1024 KB
01-04.txt AC 12 ms 896 KB
01-05.txt AC 11 ms 896 KB
01-06.txt AC 13 ms 1024 KB
01-07.txt AC 12 ms 896 KB
01-08.txt AC 14 ms 1024 KB
01-09.txt AC 12 ms 896 KB
01-10.txt AC 10 ms 768 KB
01-11.txt AC 13 ms 1024 KB
01-12.txt AC 14 ms 1024 KB
01-13.txt AC 12 ms 896 KB
01-14.txt AC 14 ms 1024 KB