Submission #1572377
Source Code Expand
namespace std; int main(){ int N,a[100001]; cin>>N; for(int i=1;i<N+1;i++){ cin>>a[i]; } int count,b; for(int i=1;i<N+1;i++){ b=a[i]; if(i==a[b]){count++;} } cout<<count/2; return 0; }
Submission Info
Submission Time | |
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Task | B - Friendly Rabbits |
User | yuzu1 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 217 Byte |
Status | CE |
Compile Error
./Main.cpp:1:15: error: expected ‘{’ before ‘;’ token namespace std; ^ ./Main.cpp: In function ‘int std::main()’: ./Main.cpp:5:1: error: ‘cin’ was not declared in this scope cin>>N; ^ ./Main.cpp:15:1: error: ‘cout’ was not declared in this scope cout<<count/2; ^ ./Main.cpp: At global scope: ./Main.cpp:20:1: error: expected ‘}’ at end of input } ^