Submission #981791

#	Time	Username	Problem	Language	Result	Execution time	Memory
981791		shadow_sami	Fish 3 (JOI24_fish3)	C++17	28 / 100	369 ms	53076 KiB

Main

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long int ll;
typedef vector<ll> vi;
typedef vector<vector<ll>> vvi;
typedef pair<ll,ll> pi;
typedef map<ll,ll> mi;
typedef long double ld;
typedef vector<ld> vd;
typedef vector<vector<ld>> vvd;
typedef pair<ld,ld> pd;
#define ff first
#define ss second
#define srt(a) sort(a.begin(),a.end());
#define fip(k, n) for (ll i = k; i < n; i++)
#define fjp(k, n) for (ll j = k; j < n; j++)
#define fin(k, n) for (ll i = k; i >= n; i--)
#define fjn(k, n) for (ll j = k; j >= n; j--)
#define fp(k, n, m) for (ll k = n; k < m; k++)
#define fn(k, n, m) for (ll k = n; k >= m; k--)
#define ordered_set tree<pi, null_type,less< pi >, rb_tree_tag,tree_order_statistics_node_update>
#define totalOne(n) __builtin_popcount(n)
#define backZero(n) __builtin_ctzll(n)
#define frontZero(n) __builtin_clzll(n)
#define fx(k) for ( auto x : k )
#define test ll t;cin >> t;while (t--)
#define nli "\n"

// ==========================(debug)============================================================================================== //

#ifndef ONLINE_JUDGE
#define debug(x) cerr << #x <<" "; _printn(x); cerr << nli;
#else
#define debug(x)
#endif

void _printn(ll x){ cerr<<x<<" "; }
void _printn(int x){ cerr<<x<<" "; }
void _printn(ld x){ cerr<<x<<" "; }
void _printn(double x){ cerr<<x<<" "; }
void _printn(string x){ cerr<<x<<" "; }
void _printn(char x){ cerr<<x<<" "; }
void _printn(bool x){ cerr<<x<<" "; }
template<class T,class V>void _printn(pair<T,V> vv);
template<class T> void _printn(vector<T> vv);
template<class T> void _printn(set<T> vv);
template<class T,class V> void _printn(map<T,V> vv);
template<class T> void _printn(multiset<T> vv);
template<class T,class V>void _printn(pair<T,V> vv){ cerr<<"( ";_printn(vv.ff);cerr<<",";_printn(vv.ss);cerr<<")";}
template<class T> void _printn(vector<T> vv){ cerr<<"[ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"]"; };
template<class T> void _printn(set<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T> void _printn(multiset<T> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };
template<class T,class V> void _printn(map<T,V> vv){ cerr<<"{ "; for(auto xx:vv){ _printn(xx);cerr<<" "; } cerr<<"}"; };

// ==========================(debug)============================================================================================== //

ll n,m,tp,tp2,res,cnt,sum,tptp,ans;
const ll mx = 3e5+5;
const ll mod = 1e9+7;

// ==========================(MOD)=============================================================================================== //

ll mod_add(ll aa,ll bb){ return ((aa%mod)+(bb%mod))%mod; }
ll mod_minus(ll aa,ll bb){ return (((aa%mod)-(bb%mod))+10*mod)%mod; }
ll mod_mul(ll aa,ll bb){ return ((aa%mod)*(bb%mod))%mod; }
ll mod_power(ll aa,ll bb){ aa%=mod; ll empowered = 1; bb%=mod-1; while(bb > 0){ if(bb & 1) empowered = mod_mul(empowered,aa); bb = bb >> 1; aa = mod_mul(aa,aa); } return empowered; }
ll mod_divi(ll aa,ll bb){ aa=mod_mul(aa,mod_power(bb,mod-2)); return aa; }

// ==========================(MOD)=============================================================================================== //

bool f = false;
ll a[mx];
ll pref[mx];
ll prv[mx];
ll na[mx];
stack<ll> sck;
vector<pi> lis[mx];

typedef struct SEGMENT_TREE{
	vi arr,laz;
	ll range;
	void init(ll k){
		range = 4 * k;
		arr.resize(range);
		laz.resize(range);
		fip(0,range){
			arr[i] = 0;
			laz[i] = -1;
		}
		return;
	}
	void prop(ll ptr,ll l,ll r){
		if(laz[ptr]!=-1){
			arr[ptr] = laz[ptr] * (r-l+1);			
			if(l!=r){
				laz[2*ptr] = laz[ptr];
				laz[2*ptr+1] = laz[ptr];
			}
		}
		laz[ptr] = -1;
		return;
	}
	void update(ll ptr,ll l,ll r,ll st,ll en, ll val){
		prop(ptr,l,r);
		if(l>en || r<st)
			return;
		if(l>=st && r<=en){
			laz[ptr] = val;
			prop(ptr,l,r);
			return;
		}
		ll mid = l + (r-l) / 2;
		update(2*ptr,l,mid,st,en,val);
		update(2*ptr+1,mid+1,r,st,en,val);
		arr[ptr] = arr[2*ptr] + arr[2*ptr+1];
		return;
	}
	ll query(ll ptr,ll l,ll r,ll st,ll en){
		prop(ptr,l,r);
		if(l>en || r<st)
			return 0;
		if(l>=st && r<=en)
			return arr[ptr];		
		ll mid = l + (r-l) / 2;				
		return query(2*ptr,l,mid,st,en)+query(2*ptr+1,mid+1,r,st,en);
	}
}SGT;

SGT sgt;

ll get(ll l,ll r){
	if(r<l)
		return 0;
	return pref[r] - (l?pref[l-1]:0);
}

void emptify(){
	while(sck.size())
		sck.pop();
	return;
}

int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    // #ifndef ONLINE_JUDGE
    //     freopen("input1.txt", "r", stdin);
    //     freopen("output1.txt", "w", stdout);
    //     freopen("error1.txt", "w", stderr);
    // #endif // ONLINE_JUDGE

        cin>>n>>tp;
        fip(0,n)
        	cin>>a[i];
        fip(0,n)	
        	pref[i] = a[i] + (i?pref[i-1]:0ll);
        ll sr,de;
        cin>>m;
        sgt.init(n);
        emptify();
        fip(0,n){
        	while(sck.size() && a[sck.top()] > a[i])
        		sck.pop();
        	if(sck.size())
        		prv[i] = sck.top();
        	else
        		prv[i] = -1;
        	sck.push(i);
        }
        fip(0,m){
        	cin>>sr>>de;
        	sr--,de--;        
        	lis[de].push_back({sr,i});
        }
        fip(0,n){
        	tp = prv[i];
        	tp++;
        	sgt.update(1,0,n-1,tp,i,a[i]);
        	fx(lis[i]){
        		tp = x.ff;
        		ans = get(tp,i);        		
        		ans -= sgt.query(1,0,n-1,tp,i);        		
        		na[x.ss] = ans;
        	}        		        		
        }
        fip(0,m)
        	cout<<na[i]<<nli;        
        // cout<<log2(1e12)<<nli;

    // cerr << "Time elapsed: " << setprecision(6) << 1000.0 * clock() / CLOCKS_PER_SEC << "ms\n";
    return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 7
• Subtask 3: 28 / 28
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36