Submission #69307197

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;

#define int long long

#define fileio(x,y) freopen(x,"r",stdin),freopen(y,"w",stdout)
#define tup tuple<int,int,int>
#define fir(x) (get<0>(x))
#define sec(x) (get<1>(x))
#define thr(x) (get<2>(x))
#define pii pair<int,int>
#define bit(x) bitset<x>
#define pb emplace_back
#define i12 __int128_t
#define mt make_tuple
#define mp make_pair

const int	mod=998244353;
const int	maxn=2e5+10;

int a[maxn];
int n,x;

void work()
{
    /* Code */
    cin>>n>>x; int tar=0;
    for(int i=1; i<=n; i++) cin>>a[i],tar+=(a[i]==1);
    for(int i=1; i<=x; i++) if(a[i]) tar-=2; else break;
    for(int i=n; i>x; i--) if(a[i]) tar-=2; else break;
    cout<<n+tar<<'\n';
    return;
}

signed main()
{
    // fileio(".in",".out");
    ios::sync_with_stdio(false);
    cin.tie(0);
    int t,stTime=clock();
    t=1;
    while(t--) work();
    // cerr<<"Time : "<<(double)(clock()-stTime)/CLOCKS_PER_SEC<<'\n';
    return 0;
} // Cellinia Texas.

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:41:11: warning: unused variable ‘stTime’ [-Wunused-variable]
   41 |     int t,stTime=clock();
      |           ^~~~~~

Judge Result