#define DEBUG 0
#include <bits/stdc++.h>
using namespace std;
#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}
// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
public:
template<typename T>
_Debug& operator,(T val) {
cout << val << endl;
return *this;
}
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif
// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back
// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;
// ---------- END OF TEMPLATE ----------
char S[400];
vi c[3];
int dp[2500000][3];
int main() {
int i;
int N;
scanf("%d",&N);
for (i = 0; i < N; i++) {
scanf(" %c",&S[i]);
if (S[i] == 'R') c[0].pb(i);
else if (S[i] == 'G') c[1].pb(i);
else c[2].pb(i);
}
int j,x = c[0].size(),y = c[1].size(),z = c[2].size();
for (i = 1; i < (x+1)*(y+1)*(z+1); i++) {
int p = i % (x+1),q = (i/(x+1)) % (y+1),r = i/((x+1)*(y+1));
for (j = 0; j < 3; j++) dp[i][j] = 1e9;
if (p > 0) dp[i][0] = min(dp[i][0],min(dp[i-1][1],dp[i-1][2])+abs(c[0][p-1]-(p+q+r-1)));
if (q > 0) dp[i][1] = min(dp[i][1],min(dp[i-(x+1)][0],dp[i-(x+1)][2])+abs(c[1][q-1]-(p+q+r-1)));
if (r > 0) dp[i][2] = min(dp[i][2],min(dp[i-(x+1)*(y+1)][0],dp[i-(x+1)*(y+1)][1])+abs(c[2][r-1]-(p+q+r-1)));
}
i--;
int ans = min(min(dp[i][0],dp[i][1]),dp[i][2]);
printf("%d\n",(ans < 1e8) ? ans/2:-1);
return 0;
}
Compilation message
joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:64:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&N);
~~~~~^~~~~~~~~
joi2019_ho_t3.cpp:66:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf(" %c",&S[i]);
~~~~~^~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
128 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
3 ms |
256 KB |
Output is correct |
6 |
Correct |
2 ms |
308 KB |
Output is correct |
7 |
Correct |
2 ms |
376 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 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
128 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
3 ms |
256 KB |
Output is correct |
6 |
Correct |
2 ms |
308 KB |
Output is correct |
7 |
Correct |
2 ms |
376 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 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
764 KB |
Output is correct |
3 |
Correct |
3 ms |
780 KB |
Output is correct |
4 |
Correct |
3 ms |
888 KB |
Output is correct |
5 |
Correct |
3 ms |
888 KB |
Output is correct |
6 |
Correct |
3 ms |
888 KB |
Output is correct |
7 |
Correct |
3 ms |
888 KB |
Output is correct |
8 |
Correct |
3 ms |
760 KB |
Output is correct |
9 |
Correct |
3 ms |
760 KB |
Output is correct |
10 |
Correct |
3 ms |
760 KB |
Output is correct |
11 |
Correct |
3 ms |
760 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
496 KB |
Output is correct |
14 |
Correct |
2 ms |
632 KB |
Output is correct |
15 |
Correct |
3 ms |
888 KB |
Output is correct |
16 |
Correct |
3 ms |
888 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
128 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
3 ms |
256 KB |
Output is correct |
6 |
Correct |
2 ms |
308 KB |
Output is correct |
7 |
Correct |
2 ms |
376 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 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
12 |
Halted |
0 ms |
0 KB |
- |