/* Author : Mychecksdead */
#include<bits/stdc++.h>
using namespace std;
#define ll long long int
#define MOD (1000000000+7)
#define MOD1 (998244353)
#define pb push_back
#define all(x) x.begin(), x.end()
#define en cout << '\n'
const int N = 1e6+100, M = 1e5+10, K = 22;
int n, q;
string s;
void solve(){
cin >> n >> s;
cin >> q;
for(int i = 0; i < q; ++i){
int l, r; cin >> l >> r;
--l, --r;
vector<int> a;
for(int j = l; j <= r; ++j) a.pb(s[j] == 'T' ? -1 : 1);
int ans = 0, sum = 0;
for(int j = l; j <= r; ++j){
if(sum + a[j - l] < 0) ++ans, a[j - l] = 0;
else sum += a[j - l];
}
sum = 0;
for(int j = r; j >= l; --j){
if(sum + a[j - l] < 0) ++ans;
else sum += a[j - l];
}
cout << ans << '\n';
}
}
int main(){
cin.tie(0); ios::sync_with_stdio(0);
int tt = 1, aa;
// freopen("in.txt", "r", stdin);
// freopen("out.txt", "w", stdout);
// cin >> tt;
while(tt--){
solve();
// en;
}
cerr<<"time taken : "<<(float)clock()/CLOCKS_PER_SEC<<" seconds\n";
return 0;
}
Compilation message
election.cpp: In function 'int main()':
election.cpp:40:15: warning: unused variable 'aa' [-Wunused-variable]
40 | int tt = 1, aa;
| ^~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
348 KB |
Output is correct |
2 |
Correct |
4 ms |
492 KB |
Output is correct |
3 |
Correct |
4 ms |
468 KB |
Output is correct |
4 |
Correct |
4 ms |
468 KB |
Output is correct |
5 |
Correct |
4 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
348 KB |
Output is correct |
2 |
Correct |
4 ms |
492 KB |
Output is correct |
3 |
Correct |
4 ms |
468 KB |
Output is correct |
4 |
Correct |
4 ms |
468 KB |
Output is correct |
5 |
Correct |
4 ms |
348 KB |
Output is correct |
6 |
Execution timed out |
3046 ms |
2492 KB |
Time limit exceeded |
7 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
348 KB |
Output is correct |
2 |
Correct |
4 ms |
492 KB |
Output is correct |
3 |
Correct |
4 ms |
468 KB |
Output is correct |
4 |
Correct |
4 ms |
468 KB |
Output is correct |
5 |
Correct |
4 ms |
348 KB |
Output is correct |
6 |
Execution timed out |
3046 ms |
2492 KB |
Time limit exceeded |
7 |
Halted |
0 ms |
0 KB |
- |