Submission #704433

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Source Code Expand

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

typedef pair<int, int> pii;
typedef long long ll;
typedef vector<int> vi;

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define rep(i,n) rep2(i,0,n)
#define rep2(i,m,n) for(int i=m;i<(n);i++)
#define ALL(c) (c).begin(),(c).end()

int N, M, T;
int ret;
int a[110];

int main() {
    cin >> N >> M >> T;
    rep(i, N) cin >> a[i];

    ret += max(0, a[0] - M);
    ret += max(0, T - a[N - 1] - M);

    rep(i, N - 1) ret += max(0, a[i + 1] - a[i] - M * 2);

    cout << ret << endl;
    return 0;
}

Submission Info

Judge Result