19 lines
288 B
C++
19 lines
288 B
C++
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#include<bits/stdc++.h>
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using namespace std;
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int main()
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{
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int n,i,sum,count=0;
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int p[3];
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cin>>n;
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while(n--)
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{
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sum=0;
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for(i=0;i<3;i++)
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{
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cin>>p[i];
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sum+=p[i];
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}
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if(sum>=2) count++;
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}
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cout<<count;
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}
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