Submission #1557881

---

Source Code Expand

#include<stdio.h>
#include<map>
#include<cmath>
#include<stdlib.h>
#include<algorithm>
#include<set>
#include<vector>
#include<queue>

using namespace std;

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

const int MX = 100005;

int N;
int D[MX];

int main()
{
	scanf("%d", &N);
	int ans = 0, cnt = 0, a;
	for(int i = 1; i <= N; i++){
		scanf("%d", &a);
		if( a == i ) cnt++;
		else ans += (cnt+1) / 2, cnt = 0;
	}ans += (cnt+1) / 2;
	printf("%d\n", ans);
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:22:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
                 ^
./Main.cpp:25:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a);
                  ^

Judge Result