Submission #1678487
Source Code Expand
#include<set> #include<map> #include<cmath> #include<queue> #include<bitset> #include<string> #include<cstdio> #include<cctype> #include<cassert> #include<cstdlib> #include<cstring> #include<sstream> #include<iostream> #include<algorithm> #define For(i,x,y) for (int i=x;i<y;i++) #define pb push_back #define mp make_pair #define fi first #define se second #define lf else if #define dprintf(...) fprintf(stderr,__VA_ARGS__) using namespace std; typedef long long ll; typedef double db; typedef pair<int,int> pii; typedef vector<int> Vi; int IN(){ int c,f,x; while (!isdigit(c=getchar())&&c!='-');c=='-'?(f=1,x=0):(f=0,x=c-'0'); while (isdigit(c=getchar())) x=(x<<1)+(x<<3)+c-'0';return !f?x:-x; } const int N=500000+19; char s[N]; int A[N]; int n,K,isA,x; int main(){ n=IN(),K=IN(); scanf("%s",s+1); if (s[1]=='A'){ s[1]='B'; if (--K==0) return puts(s+1),0; } if (s[n]=='B'){ for (int l=1,r;l<=n;l=r+1){ for (r=l;r+1<=n&&s[r+1]==s[l];r++); For(i,l,r) s[i]=(s[i]=='A'?'B':'A'); } s[n]='A'; if (--K==0) return puts(s+1),0; } For(i,1,n+1) A[i]=(s[i]!=s[i+1]); For(i,n+1,2*n+1) A[i]=1; isA=(s[1]=='A'); x=1; while (K){ if (isA){ A[x]^=1; isA^=1; } else{ if (A[x++]==0) isA^=1; } if (--K==0) break; if (x==n+1){ if (n%2==0) break; K%=2; } } For(i,1,n+1){ putchar(isA?'A':'B'); if (A[x++]==1) isA^=1; } }
Submission Info
Submission Time | |
---|---|
Task | D - Half Reflector |
User | rxdoi |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 1450 Byte |
Status | AC |
Exec Time | 7 ms |
Memory | 2176 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:45:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",s+1); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 900 / 900 | ||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.txt, in41.txt, in42.txt, in5.txt, in543.txt, in557.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | AC | 1 ms | 256 KB |
in10.txt | AC | 6 ms | 2176 KB |
in11.txt | AC | 6 ms | 2176 KB |
in12.txt | AC | 5 ms | 2176 KB |
in13.txt | AC | 6 ms | 2176 KB |
in14.txt | AC | 7 ms | 2176 KB |
in15.txt | AC | 5 ms | 2176 KB |
in16.txt | AC | 5 ms | 2176 KB |
in17.txt | AC | 6 ms | 2176 KB |
in18.txt | AC | 6 ms | 2176 KB |
in19.txt | AC | 5 ms | 2176 KB |
in2.txt | AC | 3 ms | 1280 KB |
in20.txt | AC | 6 ms | 2176 KB |
in21.txt | AC | 6 ms | 2176 KB |
in22.txt | AC | 7 ms | 2176 KB |
in23.txt | AC | 7 ms | 2176 KB |
in24.txt | AC | 6 ms | 2176 KB |
in25.txt | AC | 7 ms | 2176 KB |
in26.txt | AC | 7 ms | 2176 KB |
in27.txt | AC | 7 ms | 2176 KB |
in28.txt | AC | 6 ms | 2176 KB |
in29.txt | AC | 7 ms | 2176 KB |
in3.txt | AC | 7 ms | 2176 KB |
in30.txt | AC | 6 ms | 2176 KB |
in31.txt | AC | 7 ms | 2176 KB |
in32.txt | AC | 7 ms | 2176 KB |
in33.txt | AC | 7 ms | 2176 KB |
in34.txt | AC | 7 ms | 2176 KB |
in35.txt | AC | 6 ms | 2176 KB |
in36.txt | AC | 6 ms | 2176 KB |
in37.txt | AC | 7 ms | 2176 KB |
in38.txt | AC | 6 ms | 2176 KB |
in39.txt | AC | 6 ms | 2176 KB |
in4.txt | AC | 7 ms | 2176 KB |
in40.txt | AC | 6 ms | 2176 KB |
in41.txt | AC | 7 ms | 2176 KB |
in42.txt | AC | 6 ms | 2176 KB |
in5.txt | AC | 6 ms | 2176 KB |
in543.txt | AC | 6 ms | 2176 KB |
in557.txt | AC | 7 ms | 2176 KB |
in6.txt | AC | 1 ms | 256 KB |
in7.txt | AC | 7 ms | 2176 KB |
in8.txt | AC | 6 ms | 2176 KB |
in9.txt | AC | 7 ms | 2176 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |