Submission #968258

#	Time	Username	Problem	Language	Result	Execution time	Memory
968258		willychan	Real Mountains (CCO23_day1problem2)	C++17	0 / 25	0 ms	348 KiB

Main

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds

const int MOD = 1e6+3;


int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int n;cin>>n;
	vector<int> h(n);
	for(int i=0;i<n;i++) cin>>h[i];
	int ans;
	while(8){
		pair<int,int> minn = {1e9,-1};
		for(int i=0;i<n;i++) minn = min(minn,{h[i],i});
		int k = minn.second;
		int cnt = 0;
		for(int i=0;i<n;i++) if(h[i]==minn.first) cnt++;
		int r=minn.first;
		int l = minn.first;
		for(int i=k;i<n;i++){
			if(h[i]>r){
				r = h[i];
				break;
			}
		}
		for(int i=k;i>=0;i--){
			if(h[i]>l){
				l = h[i];
				break;
			}
		}
		if(r==h[k] || l==h[k]) break;
		if(cnt==1){
			ans+=minn.first+l+r;
			ans%=MOD;
		}else{
			ans = (ans+minn.first+l+r)%MOD;
			ans = (ans+min(r,l)+2*minn.first+1)%MOD;
			ans = (ans+((3LL*minn.first+2LL)*(cnt-2))%MOD)%MOD;
		}
		for(int i=0;i<n;i++) if(h[i]==minn.first) h[i]++;
	}
	cout<<ans<<"\n";
	return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:47:13: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
   47 |  cout<<ans<<"\n";
      |             ^~~~

• Subtask 1: 0 / 3
• Subtask 2: 0 / 3
• Subtask 3: 0 / 3
• Subtask 4: 0 / 3
• Subtask 5: 0 / 4
• Subtask 6: 0 / 5
• Subtask 7: 0 / 4