Submission #554784

#	Time	Username	Problem	Language	Result	Execution time	Memory
554784		cheetose	Sterilizing Spray (JOI15_sterilizing)	C++17	100 / 100	173 ms	10472 KiB

sterilizing

#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<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<ld> 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 = 998244353;
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[] = { -1,-2,1,-2,2,-1,2,1 }, ddy[] = { -2,-1,-2,1,-1,2,1,2 };

ll a[100005],T[100005];
int n,m,k;
void upd(int i,ll k){
	while(i<=n){
		T[i]+=k;
		i+=(i&-i);
	}
}
ll sum(int i){
	ll c=0;
	while(i>0){
		c+=T[i];
		i-=(i&-i);
	}
	return c;
}
int o[100000],x[100000],y[100000];
int main(){
	scanf("%d%d%d",&n,&m,&k);
	fup(i,1,n,1)scanf("%lld",a+i);
	fup(i,0,m-1,1)scanf("%d%d%d",o+i,x+i,y+i);
	set<int> S;
	fup(i,1,n,1){
		if(a[i])S.insert(i);
		upd(i,a[i]);
	}
	fup(i,0,m-1,1){
		if(o[i]==1){
			if(y[i]>0)S.insert(x[i]);
			else if(a[x[i]] && !y[i])S.erase(x[i]);
			ll t=y[i]-a[x[i]];
			upd(x[i],t);
			a[x[i]]=y[i];
		}else if(o[i]==2){
			if(k==1)continue;
			auto it=S.lower_bound(x[i]);
			while(it!=S.end() && *it<=y[i]){
				int j=*it;
				ll nx=a[j]/k;
				upd(j,nx-a[j]);
				a[j]=nx;
				if(!nx)it=S.erase(it);
				else it++;
			}
		}else{
			printf("%lld\n",sum(y[i])-sum(x[i]-1));
		}
	}
}

Compilation message (stderr)

sterilizing.cpp: In function 'int main()':
sterilizing.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))
      |                              ^
sterilizing.cpp:62:2: note: in expansion of macro 'fup'
   62 |  fup(i,1,n,1)scanf("%lld",a+i);
      |  ^~~
sterilizing.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))
      |                              ^
sterilizing.cpp:63:2: note: in expansion of macro 'fup'
   63 |  fup(i,0,m-1,1)scanf("%d%d%d",o+i,x+i,y+i);
      |  ^~~
sterilizing.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))
      |                              ^
sterilizing.cpp:65:2: note: in expansion of macro 'fup'
   65 |  fup(i,1,n,1){
      |  ^~~
sterilizing.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))
      |                              ^
sterilizing.cpp:69:2: note: in expansion of macro 'fup'
   69 |  fup(i,0,m-1,1){
      |  ^~~
sterilizing.cpp:61:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   61 |  scanf("%d%d%d",&n,&m,&k);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
sterilizing.cpp:62:19: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   62 |  fup(i,1,n,1)scanf("%lld",a+i);
      |              ~~~~~^~~~~~~~~~~~
sterilizing.cpp:63:21: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |  fup(i,0,m-1,1)scanf("%d%d%d",o+i,x+i,y+i);
      |                ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 75 / 75