Submission #347068

#	Time	Username	Problem	Language	Result	Execution time	Memory
347068		cheetose	빌딩 장식 3 (JOI15_building3)	C++17	100 / 100	150 ms	14956 KiB

building3

#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a))
#define MEM_1(a) memset((a),-1,sizeof(a))
#define ALL(a) a.begin(),a.end()
#define COMPRESS(a) sort(ALL(a));a.resize(unique(ALL(a))-a.begin())
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<db, db> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<double> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int,int,int,int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const int MOD = 1000000007;
ll POW(ll a, ll b, ll MMM=MOD) {ll ret=1; for(;b;b>>=1,a=(a*a)%MMM)if(b&1)ret=(ret*a)% MMM; return ret; }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };
int ddx[]={2,2,-2,-2,1,1,-1,-1},ddy[]={1,-1,1,-1,2,-2,2,-2};

int a[1000000],mx[1000000];
int main() {
	ll ans=0;
	int n;
	scanf("%d",&n);
	n--;
	fup(i,0,n-1,1)scanf("%d",a+i);
	fup(i,0,n-1,1){
		if(a[i]>mx[i]+2)return !printf("0\n");
		if(a[i]==mx[i]+2){
			ans=0;
			fup(j,0,i,1)if(mx[j]==mx[i])ans++;
			mx[i+1]=a[i];
			fup(j,i+1,n-1,1){
				if(a[j]>mx[j]+1)ans=0;
				mx[j+1]=max(mx[j],a[j]);
			}
			return !printf("%lld\n",ans);
		}
		ans+=mx[i]+1;
		mx[i+1]=max(mx[i],a[i]);
	}
	ans+=mx[n]+1;
	printf("%lld\n",ans-n);
}

Compilation message (stderr)

building3.cpp: In function 'int main()':
building3.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
building3.cpp:49:2: note: in expansion of macro 'fup'
   49 |  fup(i,0,n-1,1)scanf("%d",a+i);
      |  ^~~
building3.cpp:10:30: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
building3.cpp:50:2: note: in expansion of macro 'fup'
   50 |  fup(i,0,n-1,1){
      |  ^~~
building3.cpp:10:30: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
building3.cpp:54:4: note: in expansion of macro 'fup'
   54 |    fup(j,0,i,1)if(mx[j]==mx[i])ans++;
      |    ^~~
building3.cpp:10:30: warning: unnecessary parentheses in declaration of 'j' [-Wparentheses]
   10 | #define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
      |                              ^
building3.cpp:56:4: note: in expansion of macro 'fup'
   56 |    fup(j,i+1,n-1,1){
      |    ^~~
building3.cpp:47:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   47 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~
building3.cpp:49:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   49 |  fup(i,0,n-1,1)scanf("%d",a+i);
      |                ~~~~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 30 / 30
• Subtask 3: 60 / 60