Submission #49469461

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
#ifdef LOCAL
 #define debug(...) fprintf(stdout, ##__VA_ARGS__)
#else
 #define debug(...) void(0)
#endif
//#define int long long
inline int read(){int x=0,f=1;char ch=getchar();
while(ch<'0'||ch>'9'){if(ch=='-')f=-1;
ch=getchar();}while(ch>='0'&&ch<='9'){x=(x<<1)+
(x<<3)+(ch^48);ch=getchar();}return x*f;}
#define Z(x) (x)*(x)
#define pb push_back
#define fi first
#define se second
//#define M
//#define mo
//#define N
int n, m, i, j, k, T;
char s[10010]; 

signed main()
{
//	#ifdef LOCAL
//	  freopen("in.txt", "r", stdin);
//	  freopen("out.txt", "w", stdout);
//	#endif
//	srand(time(NULL));
//	T=read();
//	while(T--) {
//
//	}
	n = read(); m = log2(n) + 1; 
	if(n == (1 << m - 1)) --m; 
	printf("%d", m); cout << endl; 
	for(i = 0; i < m; ++i) {
		k = 0; 
		for(j = 1; j <= n; ++j) 	
			if(j & (1 << i)) ++k; 
		printf("%d ", k); 
		for(j = 1; j <= n; ++j) 	
			if(j & (1 << i)) printf("%d ", j); 
//		printf("\n"); 
		cout<<endl; 
	}
	scanf("%s", s); 
	for(i = k = 0; i < m; ++i) if(s[i] == '1') k |= (1 << i); 
	if(k == 0) k = n; 
	printf("%d", k); cout<<endl; 
	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:35:25: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses]
   35 |         if(n == (1 << m - 1)) --m;
      |                       ~~^~~
Main.cpp:47:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   47 |         scanf("%s", s);
      |         ~~~~~^~~~~~~~~

Judge Result