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22 lines
328 B
C++
22 lines
328 B
C++
#include <iostream>
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#include <iomanip>
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#include <cstring>
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#include <cstdio>
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#include <ctime>
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#include <cmath>
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using namespace std;
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int main(){
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int a,b[3][10000],sum=0;
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cin >>a;
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for(int i=0;i<2;i++){
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for(int j=0;j<a;j++){
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cin >>b[i][j];
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}
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}
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for(int i=0;i<a;i++){
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sum+=b[0][i]*b[1][i];
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}
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cout <<sum;
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return 0;
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}
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