Submission #901225

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Source Code Expand

#include<vector>
#include<cmath>
#include<map>
#include<cstdlib>
#include<iostream>
#include<sstream>
#include<fstream>
#include<string>
#include<algorithm>
#include<cstring>
#include<cstdio>
#include<set>
#include<stack>
#include<bitset>
#include<functional>
#include<ctime>
#include<queue>
#include<deque>
#include<complex>
using namespace std;
#define pb push_back
#define pf push_front
typedef long long lint;
typedef complex<double> P;
#define mp make_pair
#define fi first
#define se second
typedef pair<int,int> pint;
#define All(s) s.begin(),s.end()
#define rAll(s) s.rbegin(),s.rend()
#define REP(i,a,b) for(int i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)
bool sumi[114514];
int a[114514],pos[114514],num[114514];
vector<int> v;
int main()
{
	int n,m,q,lo=0;
	scanf("%d %d",&m,&n);
	scanf("%d",&q);
	rep(i,q){
		scanf("%d",&a[i]);a[i]--;
	}
	for(int i=q-1;i>=0;i--){
		if(sumi[a[i]]) continue;
		v.pb(a[i]);sumi[a[i]]=true;
	}
	rep(i,n){
		if(!sumi[i]) v.pb(i);
	}
	//rep(i,n) cout<<v[i]<<' ';cout<<endl;
	rep(i,n) pos[v[i]]=i;
	int t=n-1;
	for(;t>0;t--){
		if(v[t]<v[t-1]) break;
	}
	//cout<<t<<endl;
	memset(num,0,sizeof(num));num[0]=m;
	int hi=0;
	for(int i=q-1;i>=0;i--){
		if(num[pos[a[i]]]>0){
			num[pos[a[i]]]--;
			num[pos[a[i]]+1]++;
			hi=max(hi,pos[a[i]]+1);
			//while(lo<n && num[lo]<1) lo++;
		}
		else if(hi<pos[a[i]]){
			cout<<"No"<<endl;return 0;
		}
	}
	rep(i,n){
		if(num[i]>0 && t>i){
			cout<<"No"<<endl;return 0;
		}
	}
	cout<<"Yes"<<endl;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:39:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&m,&n);
                      ^
./Main.cpp:40:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&q);
                ^
./Main.cpp:42:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);a[i]--;
                    ^

Judge Result