#include <bits/stdc++.h>
using namespace std;
#define int long long
#define el cout<<endl;
#define fr(n,m) for(int i=n;i<m;i++)
#define frj(n,m) for(int j=n;j<m;j++)
#define frl(n,m) for(int l=n;l<m;l++)
#define frd(n,m) for(int d=n;d<m;d++)
#define ff for(int i=0;i<n;i++)
#define mii map<int,int>
#define mci map<char,int>
#define vi vector<int>
#define vc vector<char>
#define mivi map<int,vi>
#define pb push_back
#define ext cout<<-1;return;
#define inf 1e18
#define sz size()
#define fi first
#define se second
const int mod = 1e9 + 7;
// const int mod=998
int i = 0, j = 0, k = 0, l = 0, h = 0, w = 0, a = 0, b = 0, c = 0, d = 0, n = 0, m = 0;
int num = 0, ans = 0, sum = 0, mi = inf, ma = 0;
string s, p, st;
const int N = 1e3 + 5;
void solve() {
cin >> n >> s;
vi v(n);
mii mp;
ff{
if (s[i] == s[0]) {
mp[0]++;
}
else mp[1]++;
}
a = n / 2; b = n - a;
// if (mp.sz == 2) {
if ((mp[0] == a && mp[1] == b) || (mp[1] == a && mp[0] == b)) {
int x = 0, num = 0;
ff{
if (s[i] == s[0]) {
num += x;
x--;
}
else{
x++;
}
}
mi = abs(num);
x = 0, num = 0;
ff{
if (s[i] != s[0]) {
num += x;
x--;
}
else{
x++;
}
}
mi = min(mi, abs(num));
cout << mi;
}
else ext;
// }
// else {
// }
}
signed main() {
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
int T = 1;
// cin >> T;
while (T--) {
cout << fixed << setprecision(12); solve();
el;
} return 0;
}
Compilation message
joi2019_ho_t3.cpp: In function 'void solve()':
joi2019_ho_t3.cpp:16:13: warning: macro expands to multiple statements [-Wmultistatement-macros]
16 | #define ext cout<<-1;return;
| ^~~~
joi2019_ho_t3.cpp:64:7: note: in expansion of macro 'ext'
64 | else ext;
| ^~~
joi2019_ho_t3.cpp:64:2: note: some parts of macro expansion are not guarded by this 'else' clause
64 | else ext;
| ^~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |