CSES - HIIT Open 2018 - Results
Submission details
Task:Inversions
Sender:barely div 2.8 burgeria
Submission time:2018-05-26 11:10:08
Language:C++
Status:READY
Result:ACCEPTED
Test results
testverdicttime
#1ACCEPTED0.05 sdetails
#2ACCEPTED0.04 sdetails
#3ACCEPTED0.04 sdetails
#4ACCEPTED0.04 sdetails
#5ACCEPTED0.04 sdetails

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:13:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < s.size(); i++) {
                  ~~^~~~~~~~~~

Code

#include <iostream>
#include <cmath>
#include <string>

using namespace std;

typedef long long LL;

int main(){
	string s; cin >> s;
	int zer = 0;
	int one = 0;
	for (int i = 0; i < s.size(); i++) {
		if (s[i] == '0' && (i % 2) == 1) zer++;
		if (s[i] == '1' && (i % 2) == 0) zer++;
		if (s[i] == '0' && (i % 2) == 0) one++;
		if (s[i] == '1' && (i % 2) == 1) one++;
	}
	cout << min(zer, one);
}

Test details

Test 1

Verdict: ACCEPTED

input
000000000000000000000000000000...

correct output
500000

user output
500000

Test 2

Verdict: ACCEPTED

input
111111111111111111111111111111...

correct output
500000

user output
500000

Test 3

Verdict: ACCEPTED

input
010101010101010101010101010101...

correct output
0

user output
0

Test 4

Verdict: ACCEPTED

input
101010101010101010101010101010...

correct output
0

user output
0

Test 5

Verdict: ACCEPTED

input
110101011010110100100111110110...

correct output
499476

user output
499476