#include <bits/stdc++.h>
using namespace std;
void __print(int x) { cerr << x; }
void __print(long x) { cerr << x; }
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }
template <typename T, typename V> void __print(const pair<T, V> &x) {
cerr << '{';
__print(x.first);
cerr << ", ";
__print(x.second);
cerr << '}';
}
template <typename T> void __print(const T &x) {
int f = 0;
cerr << '{';
for (auto &i : x)
cerr << (f++ ? ", " : ""), __print(i);
cerr << "}";
}
void _print() { cerr << "]\n"; }
template <typename T, typename... V> void _print(T t, V... v) {
__print(t);
if (sizeof...(v))
cerr << ", ";
_print(v...);
}
#ifndef ONLINE_JUDGE
#define dbg(x...) \
cerr << " [" << #x << "] = ["; \
_print(x); \
#else
#define dbg(x...)
#endif
#define int long long
#define rrep(i,n) for(int i=1; i<=n; i++)
#define rep(i,n) for(int i=0; i<n; i++)
#define all(v) (v).begin(), (v).end()
#define ff first
#define ss second
#define pb push_back
void solve(){
string s,t; cin >> s >> t;
if(t.size()==1){
int ch = t[0];
bool flag = true;
for(auto si : s) if(si==ch) flag=false;
cout << (flag ? "0" : "-1");
return;
}
if(t.size()==2){
if(t[0]!=t[1]){
int n = s.size();
int tmp = 0;
for(int i=0;i<n-1;i++){
if(s[i]==t[0]&&s[i+1]==t[1]) tmp++;
}
cout << tmp; return;
}
if(t[0]==t[1]){
int n = s.size();
int c1=0,c2=0,cc=0;
for(int i=0; i<n; i++){
if(s[i]==t[0])c1++;
else c2++;
if(i>0 && s[i]==t[0] && s[i-1]==t[0]) cc++;
}
if(c2+1<c1) cout << "-1";
else{
cout << cc;
}
return ;
}
}
cout << "-1";
}
int32_t main(void){
ios::sync_with_stdio(false);
cout.tie(nullptr);
cin.tie(nullptr);
int t =1; // cin >> t;
while(t--) solve();
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
896 KB |
Output is correct |
4 |
Correct |
1 ms |
740 KB |
Output is correct |
5 |
Correct |
1 ms |
736 KB |
Output is correct |
6 |
Correct |
1 ms |
736 KB |
Output is correct |
7 |
Correct |
1 ms |
740 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
736 KB |
Output is correct |
7 |
Correct |
1 ms |
740 KB |
Output is correct |
8 |
Correct |
1 ms |
740 KB |
Output is correct |
9 |
Correct |
1 ms |
672 KB |
Output is correct |
10 |
Correct |
2 ms |
740 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
736 KB |
Output is correct |
7 |
Correct |
1 ms |
740 KB |
Output is correct |
8 |
Correct |
1 ms |
740 KB |
Output is correct |
9 |
Correct |
1 ms |
672 KB |
Output is correct |
10 |
Correct |
2 ms |
740 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
1 ms |
348 KB |
Output is correct |
19 |
Correct |
1 ms |
452 KB |
Output is correct |
20 |
Correct |
2 ms |
856 KB |
Output is correct |
21 |
Correct |
1 ms |
860 KB |
Output is correct |
22 |
Correct |
1 ms |
880 KB |
Output is correct |
23 |
Correct |
1 ms |
860 KB |
Output is correct |
24 |
Correct |
1 ms |
860 KB |
Output is correct |
25 |
Correct |
0 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
860 KB |
Output is correct |
27 |
Correct |
2 ms |
860 KB |
Output is correct |
28 |
Correct |
2 ms |
860 KB |
Output is correct |
29 |
Correct |
1 ms |
860 KB |
Output is correct |
30 |
Correct |
1 ms |
860 KB |
Output is correct |
31 |
Correct |
2 ms |
860 KB |
Output is correct |
32 |
Correct |
2 ms |
860 KB |
Output is correct |
33 |
Correct |
1 ms |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
544 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |