Submission #1356114

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Source Code Expand

#include <stdio.h>
#include <string.h>
#include <algorithm>
#define MAXN (200005)
using namespace std;

int A[MAXN];
int N, X, L, R;

int main() {
	scanf("%d%d", &N, &X); N = (N<<1)-1;
	if(X == 1 || N == X) { puts("No"); return 0; }
	L = X-1; R = N-X; const int d = min(L, R);
	for(int i = X-d; i <= X+d; i++) A[N/2+1 + i - X] = i;
	if(d == L) {
		for(int i = 1; i <= (N-d-X)/2; i++) A[i] = X+d + i;
		for(int i = X+d+(N-d-X)/2+1; i <= N; i++) A[N/2+1 + d + i - X - d - (N-d-X)/2] = i;

	} else {
		for(int i = 1; i <= (X-d-1)/2; i++) A[i] = i;
		for(int i = (X-d-1)/2 + 1; i < X-d; i++) A[N/2+1 + d + i - (X-d-1)/2 ] = i;
	}
	puts("Yes");
	for(int i = 1; i <= N; i++) printf("%d\n", A[i]);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &X); N = (N<<1)-1;
                       ^

Judge Result