oj.uz

Submission #573224

# Submission time Handle Problem Language Result Execution time Memory
573224 2022-06-06T09:26:58 Z guugiuh Lightning Rod (NOI18_lightningrod) C++14
100 / 100
 565 ms 262144 KB 
#include <bits/stdc++.h>
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <vector>
using namespace std;
inline int readInt() {
    int x = 0;
    char ch = getchar_unlocked();
    while (ch < '0' || ch > '9') ch = getchar_unlocked();
    while (ch >= '0' && ch <= '9'){
		x = (x << 3) + (x << 1) + ch - '0';
		ch = getchar_unlocked();
	}
    return x;
}

int MinPyramids(int N, vector<int>X, vector<int>Y) {
    int ms=-20;int n=N;
    vector<int>v(N,1);
    for(int i=0;n>i;++i)if(X[i]+Y[i]>ms)ms=X[i]+Y[i];else v[i]=0;
    ms=-2e9;
    for(int i=n-1;i>=0;--i)if(-X[i]+Y[i]>ms)ms=-X[i]+Y[i];else v[i]=0;
    int t=0;
    for(int i=0;n>i;++i)t+=v[i];
    return t;
}

int main(){
	int N = readInt();
	vector <int> X(N);
	vector <int> Y(N);
	for(int i = 0; i < N; i++) {
		X[i] = readInt();
		Y[i] = readInt();
	}
	int ans= MinPyramids(N,X,Y);
	printf("%d", ans);
	return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 259 ms 191684 KB Output is correct
2 Correct 318 ms 240608 KB Output is correct
3 Correct 288 ms 234144 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 308 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 308 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 320 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 308 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 0 ms 320 KB Output is correct
14 Correct 12 ms 7492 KB Output is correct
15 Correct 12 ms 7440 KB Output is correct
16 Correct 10 ms 6584 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 294 ms 196572 KB Output is correct
2 Correct 330 ms 262144 KB Output is correct
3 Correct 327 ms 262144 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 259 ms 191684 KB Output is correct
2 Correct 318 ms 240608 KB Output is correct
3 Correct 288 ms 234144 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 308 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 320 KB Output is correct
17 Correct 12 ms 7492 KB Output is correct
18 Correct 12 ms 7440 KB Output is correct
19 Correct 10 ms 6584 KB Output is correct
20 Correct 294 ms 196572 KB Output is correct
21 Correct 330 ms 262144 KB Output is correct
22 Correct 327 ms 262144 KB Output is correct
23 Correct 565 ms 262144 KB Output is correct
24 Correct 493 ms 262144 KB Output is correct
25 Correct 462 ms 262144 KB Output is correct