Submission #1697232

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Source Code Expand

#include <bits/stdc++.h>
#define mset(a,b) memset(a,b,sizeof a)
#define mcpy(a,b) memcpy(a,b,sizeof b)
#define lb(x) ((x)&(-(x)))
#define xx first
#define yy second
#define pb push_back
#define mp make_pair
#define pii pair<int,int> 
#define dalao 1000000007
#define inf 0x3f3f3f3f
#define N 100010
using namespace std;
typedef long long ll;
int n,a[N],r[N];
bool t[N];
int main(){
	scanf("%d",&n);
	for(int i=1;i<=n;i++){
		scanf("%d",&a[i]);
		if(a[i]>a[i-1])t[i]=1,r[i]=a[i];else r[i]=a[i];
	}
	for(int i=1;i<=n;i++)scanf("%d",&a[i]);
	for(int i=n;i;i--){
		if(a[i]>a[i+1]){
			if(t[i]&&r[i]!=a[i])return puts("0"),0;
			else if(!t[i])t[i]=1,r[i]=a[i];
		}else if(t[i]&&r[i]>a[i])return puts("0"),0;
		else if(!t[i])r[i]=min(r[i],a[i]);
	}
	int ans=1;
	for(int i=1;i<=n;i++)if(!t[i])ans=1ll*ans*r[i]%dalao;
	printf("%d",ans);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:18:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:20:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
                    ^
./Main.cpp:23:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++)scanf("%d",&a[i]);
                                        ^

Judge Result