33 lines
665 B
C++
33 lines
665 B
C++
#include<cstdio>
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#include<iostream>
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#include<cmath>
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#include<cstring>
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#include<algorithm>
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using namespace std;
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int main()
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{
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int a[2000];
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int T,m,i;
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scanf("%d",&T);
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while(T--)
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{
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int n,h1,h2,m1,m2;
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int sum1,sum2,maxx=0;
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scanf("%d",&m);
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memset(a,0,sizeof(a));
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while(m--)
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{
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scanf("%d%d:%d%d:%d",&n,&h1,&m1,&h2,&m2);
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sum1=h1*60+m1;
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sum2=h2*60+m2;
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for(i=sum1;i<sum2;i++)
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{
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a[i]+=n;
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maxx=max(maxx,a[i]);
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}
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}
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printf("%d\n",maxx);
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}
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return 0;
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}
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