delete pics to save space

p.CH0805.cpp

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+//http://contest-hunter.org:83/contest/0x08%E3%80%8C%E5%9F%BA%E6%9C%AC%E7%AE%97%E6%B3%95%E3%80%8D%E7%BB%83%E4%B9%A0/0805%20%E9%98%B2%E7%BA%BF%EF%BC%88%E7%A7%A6%E8%85%BE%E4%B8%8E%E6%95%99%E5%AD%A6%E8%AF%84%E4%BC%B0%EF%BC%89
+#include<cstdio>
+#include<algorithm>
+using namespace std;
+typedef long long LL;
+const int maxn=200005;
+int T,n;
+LL s[maxn],e[maxn],d[maxn],maxe;
+inline LL sum(LL p)
+{
+	LL tot=0;
+	for(int i=0;i<n;i++) if(min(e[i],p)>=s[i]) tot+=(min(e[i],p)-s[i])/d[i]+1;
+	return tot;
+}
+int main()
+{
+#ifdef local
+	freopen("pro.in","r",stdin);
+#endif
+	scanf("%d",&T);
+	while(T-->0)
+	{
+		scanf("%d",&n);
+		maxe=0;
+		for(int i=0;i<n;i++)
+		{
+			scanf("%lld%lld%lld\n",&s[i],&e[i],&d[i]);
+			maxe=max(maxe,e[i]);
+		}
+		LL L=0,R=maxe+1,M,res=maxe+1;
+		while(L<=R)
+		{
+			M=(L+R)>>1;
+			if(sum(M)&1) res=M,R=M-1;
+			else L=M+1;
+		}
+		if(res==maxe+1) puts("There's no weakness.");
+		else printf("%lld %lld\n",res,sum(res)-sum(res-1));
+	}
+	return 0;
+}