Submission #68261429

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,n) for (int i=(a);i<(n);i++)
#define per(i,a,n) for (int i=(n)-1;i>=(a);i--)
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define SZ(x) ((int)(x).size())
typedef vector<int> VI;
typedef basic_string<int> BI;
typedef long long ll;
typedef pair<int,int> PII;
typedef double db;
mt19937 mrand(random_device{}()); 
const ll mod=1000000007;
int rnd(int x) { return mrand() % x;}
ll powmod(ll a,ll b) {ll res=1;a%=mod; assert(b>=0); for(;b;b>>=1){if(b&1)res=res*a%mod;a=a*a%mod;}return res;}
ll gcd(ll a,ll b) { return b?gcd(b,a%b):a;}
// head

const int N=201000;
int n;
int a[N],b[N];
bool solve() {
	scanf("%d",&n);
	bool sm=1;
	int sa=0,sb=0;
	rep(i,1,n+1) scanf("%d",&a[i]),sa+=a[i];
	rep(i,1,n+1) scanf("%d",&b[i]),sm&=a[i]==b[i],sb+=b[i];
	if (sm) return true;
	if (sa!=sb) return false;
	if (sa>=2) return true;
	if (a[1]!=1&&a[n]!=1&&b[1]!=1&&b[n]!=1) return true;
	return false;
}
int _;
int main() {
	for (scanf("%d",&_);_;_--) {
		puts(solve()?"Yes":"No");
	}
}

Submission Info

Compile Error

Main.cpp: In function ‘bool solve()’:
Main.cpp:28:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   28 |         scanf("%d",&n);
      |         ~~~~~^~~~~~~~~
Main.cpp:31:27: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   31 |         rep(i,1,n+1) scanf("%d",&a[i]),sa+=a[i];
      |                      ~~~~~^~~~~~~~~~~~
Main.cpp:32:27: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   32 |         rep(i,1,n+1) scanf("%d",&b[i]),sm&=a[i]==b[i],sb+=b[i];
      |                      ~~~~~^~~~~~~~~~~~
Main.cpp: In function ‘int main()’:
Main.cpp:41:19: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   41 |         for (scanf("%d",&_);_;_--) {
      |              ~~~~~^~~~~~~~~

Judge Result