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Submission #829585

# Submission time Handle Problem Language Result Execution time Memory
829585 2023-08-18T13:06:14 Z Rifal Coins (IOI17_coins) C++14
100 / 100
 8 ms 1556 KB 
#include <bits/stdc++.h>
#include "coins.h"

std::vector<int> coin_flips(std::vector<int> b, int c) {
    std::vector<int> flips(1);
    int cnt = 0;
    for(int i = 0; i < b.size(); i++) {
        if(b[i] == 1) cnt ^= i;
    }
    flips[0] = cnt^c;
    return flips;
}

int find_coin(std::vector<int> b) {
    int cnt = 0;
    for(int i = 0; i < b.size(); i++) {
        if(b[i] == 1) cnt ^= i;
    }
    return cnt;
}

Compilation message

coins.cpp: In function 'std::vector<int> coin_flips(std::vector<int>, int)':
coins.cpp:7:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |     for(int i = 0; i < b.size(); i++) {
      |                    ~~^~~~~~~~~~
coins.cpp: In function 'int find_coin(std::vector<int>)':
coins.cpp:16:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i = 0; i < b.size(); i++) {
      |                    ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1212 KB Output is correct
2 Correct 6 ms 1412 KB Output is correct
3 Correct 6 ms 1516 KB Output is correct
4 Correct 6 ms 1492 KB Output is correct
5 Correct 6 ms 1520 KB Output is correct
6 Correct 7 ms 1540 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1212 KB Output is correct
2 Correct 6 ms 1412 KB Output is correct
3 Correct 6 ms 1516 KB Output is correct
4 Correct 6 ms 1492 KB Output is correct
5 Correct 6 ms 1520 KB Output is correct
6 Correct 7 ms 1540 KB Output is correct
7 Correct 6 ms 1408 KB Output is correct
8 Correct 6 ms 1412 KB Output is correct
9 Correct 6 ms 1388 KB Output is correct
10 Correct 7 ms 1416 KB Output is correct
11 Correct 6 ms 1528 KB Output is correct
12 Correct 6 ms 1548 KB Output is correct
13 Correct 6 ms 1384 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1208 KB Output is correct
2 Correct 6 ms 1540 KB Output is correct
3 Correct 7 ms 1556 KB Output is correct
4 Correct 6 ms 1416 KB Output is correct
5 Correct 8 ms 1508 KB Output is correct
6 Correct 7 ms 1488 KB Output is correct
7 Correct 6 ms 1540 KB Output is correct
8 Correct 6 ms 1412 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1220 KB Output is correct
2 Correct 6 ms 1540 KB Output is correct
3 Correct 7 ms 1516 KB Output is correct
4 Correct 6 ms 1388 KB Output is correct
5 Correct 6 ms 1420 KB Output is correct
6 Correct 6 ms 1476 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1212 KB Output is correct
2 Correct 6 ms 1412 KB Output is correct
3 Correct 6 ms 1516 KB Output is correct
4 Correct 6 ms 1492 KB Output is correct
5 Correct 6 ms 1520 KB Output is correct
6 Correct 7 ms 1540 KB Output is correct
7 Correct 6 ms 1408 KB Output is correct
8 Correct 6 ms 1412 KB Output is correct
9 Correct 6 ms 1388 KB Output is correct
10 Correct 7 ms 1416 KB Output is correct
11 Correct 6 ms 1528 KB Output is correct
12 Correct 6 ms 1548 KB Output is correct
13 Correct 6 ms 1384 KB Output is correct
14 Correct 6 ms 1536 KB Output is correct
15 Correct 6 ms 1412 KB Output is correct
16 Correct 6 ms 1416 KB Output is correct
17 Correct 8 ms 1504 KB Output is correct
18 Correct 6 ms 1516 KB Output is correct
19 Correct 6 ms 1544 KB Output is correct
20 Correct 6 ms 1416 KB Output is correct
21 Correct 7 ms 1412 KB Output is correct
22 Correct 6 ms 1416 KB Output is correct
23 Correct 6 ms 1408 KB Output is correct
24 Correct 6 ms 1540 KB Output is correct
25 Correct 6 ms 1396 KB Output is correct