oj.uz

Submission #50337

# Submission time Handle Problem Language Result Execution time Memory
50337 2018-06-10T08:43:46 Z gnoor Sterilizing Spray (JOI15_sterilizing) C++17
75 / 100
 217 ms 6572 KB 
#include <cstdio>
#include <algorithm>
#include <vector>
#include <map>

using namespace std;

map<int,int> st;

long long bit[100100];

void add(int idx,int val) {
	while (idx<100100) {
		bit[idx]+=val;
		idx+=(idx&-idx);
	}
}

long long get(int idx) {
	long long sum=0;
	while (idx) {
		sum+=bit[idx];
		idx-=(idx&-idx);
	}
	return sum;
}

int tbl[100100];

int main () {
	int n,q,k;
	scanf("%d%d%d",&n,&q,&k);
	int x;
	for (int i=1;i<=n;i++) {
		scanf("%d",&x);
		tbl[i]=x;
		//st.insert(make_pair(i,x));
		st[i]=x;
	}
	int a,b,c;
	for (int i=0;i<q;i++) {
		scanf("%d%d%d",&a,&b,&c);
		if (k==1) {
			if (a==1) {
				add(b,c-tbl[b]);
				tbl[b]=c;
			} else if (a==3) {
				printf("%lld\n",get(c)-get(b-1));
			}	
			continue;
		}
		if (a==1) {
			//auto &now = st.lower_bound(make_pair(b,-1));
			if (c==0) {
				st.erase(b);
			} else {
				st[b]=c;
			}
		} else if (a==2) {
			//if (k==1) continue;
			auto xx=st.lower_bound(b);
			for(;xx->first<=c&&xx!=st.end();) {
				xx->second/=k;
				if (xx->second==0) {
					auto tmp=xx;
					xx++;
					st.erase(tmp);
				} else {
					xx++;
				}
			}
		} else if (a==3) {
			auto xx=st.lower_bound(b);
			long long ans=0;
			for (;xx->first<=c&&xx!=st.end();xx++) {
				ans+=xx->second;
			}
			printf("%lld\n",ans);
		}
	}
	return 0;
}

Compilation message

sterilizing.cpp: In function 'int main()':
sterilizing.cpp:32:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&n,&q,&k);
  ~~~~~^~~~~~~~~~~~~~~~~~~
sterilizing.cpp:35:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x);
   ~~~~~^~~~~~~~~
sterilizing.cpp:42:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d",&a,&b,&c);
   ~~~~~^~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 456 KB Output is correct
2 Incorrect 2 ms 456 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 69 ms 3736 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 3736 KB Output is correct
2 Correct 36 ms 3736 KB Output is correct
3 Correct 34 ms 3736 KB Output is correct
4 Correct 51 ms 3736 KB Output is correct
5 Correct 88 ms 5684 KB Output is correct
6 Correct 89 ms 5804 KB Output is correct
7 Incorrect 88 ms 6572 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 6572 KB Output is correct
2 Correct 85 ms 6572 KB Output is correct
3 Correct 97 ms 6572 KB Output is correct
4 Correct 86 ms 6572 KB Output is correct
5 Correct 139 ms 6572 KB Output is correct
6 Correct 152 ms 6572 KB Output is correct
7 Correct 126 ms 6572 KB Output is correct
8 Correct 167 ms 6572 KB Output is correct
9 Correct 217 ms 6572 KB Output is correct
10 Correct 150 ms 6572 KB Output is correct
11 Correct 133 ms 6572 KB Output is correct
12 Correct 213 ms 6572 KB Output is correct