Submission #149114

#TimeUsernameProblemLanguageResultExecution timeMemory
149114distutpia (#200)FunctionCup Museum (FXCUP4_museum)C++17
100 / 100
113 ms13288 KiB
#include "museum.h" long long int numB[100]; long long int numT[100]; long long int numG[100]; long long int numBT[10000]; long long int numBG[10000]; long long int numTG[10000]; long long int numBTG[1000000]; long long CountSimilarPairs(std::vector<int> B, std::vector<int> T, std::vector<int> G) { int N = B.size(); for(int i=0; i<N; i++){ B[i]--; T[i]--; G[i]--; numB[B[i]]++; numT[T[i]]++; numG[G[i]]++; numBT[100*B[i]+T[i]]++; numBG[100*B[i]+G[i]]++; numTG[100*T[i]+G[i]]++; numBTG[10000*B[i]+100*T[i]+G[i]]++; } long long int ans=0; for(int i=0; i<100; i++){ ans+=numB[i]*(numB[i]-1)/2; ans+=numT[i]*(numT[i]-1)/2; ans+=numG[i]*(numG[i]-1)/2; } for(int i=0; i<10000; i++){ ans-=numBT[i]*(numBT[i]-1)/2; ans-=numBG[i]*(numBG[i]-1)/2; ans-=numTG[i]*(numTG[i]-1)/2; } for(int i=0; i<1000000; i++){ ans+=(numBTG[i])*(numBTG[i]-1)/2; } return ans; }
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