oj.uz

Submission #163198

# Submission time Handle Problem Language Result Execution time Memory
163198 2019-11-11T18:03:01 Z TadijaSebez JOIOJI (JOI14_joioji) C++11
100 / 100
 95 ms 6264 KB 
#include <bits/stdc++.h>
using namespace std;
const int N=200050;
char s[N];
int main()
{
	int n,IJ=0,IO=0;
	scanf("%i",&n);
	scanf("%s",s+1);
	map<pair<int,int>,int> fir;
	fir[{0,0}]=0;
	int ans=0;
	for(int i=1;i<=n;i++)
	{
		if(s[i]=='I') IJ++,IO++;
		if(s[i]=='J') IJ--;
		if(s[i]=='O') IO--;
		if(fir.count({IJ,IO})) ans=max(ans,i-fir[{IJ,IO}]);
		else fir[{IJ,IO}]=i;
	}
	printf("%i\n",ans);
	return 0;
}

Compilation message

joioji.cpp: In function 'int main()':
joioji.cpp:8:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
joioji.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",s+1);
  ~~~~~^~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 476 KB Output is correct
5 Correct 3 ms 364 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 3 ms 504 KB Output is correct

Subtask #3
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 8 ms 1016 KB Output is correct
3 Correct 13 ms 1532 KB Output is correct
4 Correct 23 ms 2296 KB Output is correct
5 Correct 95 ms 3424 KB Output is correct
6 Correct 45 ms 3576 KB Output is correct
7 Correct 49 ms 4084 KB Output is correct
8 Correct 45 ms 3576 KB Output is correct
9 Correct 74 ms 3764 KB Output is correct
10 Correct 45 ms 3576 KB Output is correct
11 Correct 34 ms 5240 KB Output is correct
12 Correct 32 ms 2296 KB Output is correct
13 Correct 20 ms 1656 KB Output is correct
14 Correct 44 ms 6264 KB Output is correct
15 Correct 21 ms 1272 KB Output is correct