31 lines
699 B
C++
31 lines
699 B
C++
#include <iostream>
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#include <algorithm>
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using namespace std;
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int f[201];
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int main()
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{
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int t, n, i, j, s, e;
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cin >> t;
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while( t-- ){
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memset( f, 0, sizeof(f) );
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cin >> n;
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for( i=0; i<n; i++ ){
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cin >> s >> e;
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s = (s+1)/2;
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e = (e+1)/2;
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if( s > e ){
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int temp = s;
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s = e;
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e = temp;
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}
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for( j=s; j<=e; j++)
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f[j]++;
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}
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int consume = 0;
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for( i=1; i<=200; i++ )
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consume = max( consume, f[i] );
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cout << consume*10 << endl;
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}
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return 0;
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}
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