Submission #810358

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
vector<int> ev,od,ans;
int main() {
	int m,n;
	scanf("%d %d",&n,&m);
	for (int i=0;i<m;i++) {
		int x;
		scanf("%d",&x);
		if (x%2) od.push_back(x);
		else ev.push_back(x);
	}
	if (od.size() > 2) {
		printf("Impossible\n");
		return 0;
	}
	if (m == 1 && n == 1) {
		printf("1\n1\n1\n");
		return 0;
	}
	if (m == 1) {
		printf("%d\n",n);
		printf("2\n1 %d",n-1);
		return 0;
	}
		if (od.size() > 0) ans.push_back(od[0]);
		for (int i=0;i<ev.size();i++) ans.push_back(ev[i]);
		if (od.size() == 2) ans.push_back(od[1]);
		for (int i=0;i<m;i++) {
			if (i > 0) printf(" ");
			printf("%d",ans[i]);
		}
		printf("\n");

		printf("%d\n",ans[0] > 1 ? m : m-1);
		if (ans[0] > 1) {
			printf("%d ",ans[0]-1);
			for (int i=1;i<m-1;i++) printf("%d ",ans[i]);
			printf("%d\n",ans[m-1]+1);
		}
		else {
			for (int i=1;i<m-1;i++) printf("%d ",ans[i]);
			printf("%d\n",ans[m-1]+1);			
		}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:6:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&m);
                      ^
./Main.cpp:9:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x);
                 ^

Judge Result