Submission #9103243


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#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; }
template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; }
//---------------------------------------------------------------------------------------------------
/*---------------------------------------------------------------------------------------------------
            ∧_∧
      ∧_∧  (´<_` )  Welcome to My Coding Space!
     ( ´_ゝ`) /  ⌒i     @hamayanhamayan0
    /   \     | |
    /   / ̄ ̄ ̄ ̄/  |
  __(__ニつ/     _/ .| .|____
     \/____/ (u ⊃
---------------------------------------------------------------------------------------------------*/














int N, A[201010];
//---------------------------------------------------------------------------------------------------
void _main() {
	cin >> N;
	rep(i, 0, N) cin >> A[i];

	int cu = 1;
	rep(i, 0, N) if (A[i] == cu) cu++;
	
	if (cu == 1) cout << -1 << endl;
	else cout << N - cu + 1 << endl;
}





Submission Info

Submission Time
Task D - Brick Break
User hamayanhamayan
Language C++14 (GCC 5.4.1)
Score 400
Code Size 1594 Byte
Status
Exec Time 23 ms
Memory 1024 KB

Judge Result

Set Name Score / Max Score Test Cases
All 400 / 400 sample_01, sample_02, sample_03, sample_04, testcase_0, testcase_1, testcase_10, testcase_11, testcase_12, testcase_13, testcase_14, testcase_15, testcase_16, testcase_17, testcase_18, testcase_19, testcase_2, testcase_20, testcase_21, testcase_3, testcase_4, testcase_5, testcase_6, testcase_7, testcase_8, testcase_9
Sample 0 / 0 sample_01, sample_02, sample_03, sample_04
Case Name Status Exec Time Memory
sample_01 1 ms 256 KB
sample_02 1 ms 256 KB
sample_03 1 ms 256 KB
sample_04 1 ms 256 KB
testcase_0 7 ms 512 KB
testcase_1 15 ms 896 KB
testcase_10 23 ms 1024 KB
testcase_11 17 ms 1024 KB
testcase_12 17 ms 1024 KB
testcase_13 17 ms 1024 KB
testcase_14 17 ms 1024 KB
testcase_15 17 ms 1024 KB
testcase_16 17 ms 1024 KB
testcase_17 17 ms 1024 KB
testcase_18 17 ms 1024 KB
testcase_19 17 ms 1024 KB
testcase_2 18 ms 1024 KB
testcase_20 17 ms 1024 KB
testcase_21 17 ms 1024 KB
testcase_3 14 ms 896 KB
testcase_4 13 ms 768 KB
testcase_5 18 ms 1024 KB
testcase_6 12 ms 768 KB
testcase_7 3 ms 384 KB
testcase_8 17 ms 1024 KB
testcase_9 13 ms 1024 KB