Submission #48268912

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Source Code Expand

// LUOGU_RID: 138675894
#include<bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef double db;
typedef long double ldb;

#define rep(i,l,r) for(int i(l);i<=(r);++i)
#define per(i,r,l) for(int i(r);i>=(l);--i)
#define eb emplace_back
#define File(filename) freopen(filename ".in","r",stdin),freopen(filename ".out","w",stdout)

#ifdef EXODUS
	#define Debug(...) fprintf(stderr,__VA_ARGS__)
#else
	#define Debug(...) 0
#endif

//=========================================================================================================
// Something about IO

template<typename T>
void read(T &x){
	x=0;T flg=1;
	char ch=getchar();
	while(!isdigit(ch)){if(ch=='-')flg=-1;ch=getchar();}
	while(isdigit(ch))x=(x<<3)+(x<<1)+(ch^48),ch=getchar();
	x*=flg;
}
template<typename T,typename... Args>
void read(T &x,Args &...args){read(x),read(args...);}

//=========================================================================================================
// Define the global variables here.

bool membg=0;

ll a,b,ans;

bool memed=0;

//=========================================================================================================
// Code here.

void solve(ll v){
	ll res=b;
	auto fix=[&](ll x){if(a%x==b%x)res=min(res,a%x);};
	for(ll i=2;i*i<=v;i++)if(v%i==0)fix(i),fix(v/i);fix(v);
	a-=res,b-=res,ans+=res;return;
}

void solve(){
	read(a,b);
	while(a&&b){
		// Debug("%lld %lld\n",a,b);
		if(a<b)swap(a,b);
		ll g=__gcd(a,b);
		a/=g,b/=g;
		if(a==b){ans++;break;}
		if(a==b+1){ans+=b;break;}
		solve(a-b);
	}
	printf("%lld\n",ans);
	return;
}


//=========================================================================================================

int main(){
	Debug("%.3lfMB\n",fabs(&memed-&membg)/1024.0/1024.0);
	int timbg=clock();
	int T=1;
	while(T--)solve();
	int timed=clock();
	Debug("%.3lfs\n",1.0*(timed-timbg)/CLOCKS_PER_SEC);
	fflush(stdout);
	return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘void solve(ll)’:
Main.cpp:50:9: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
   50 |         for(ll i=2;i*i<=v;i++)if(v%i==0)fix(i),fix(v/i);fix(v);
      |         ^~~
Main.cpp:50:57: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘for’
   50 |         for(ll i=2;i*i<=v;i++)if(v%i==0)fix(i),fix(v/i);fix(v);
      |                                                         ^~~
Main.cpp: In function ‘int main()’:
Main.cpp:18:28: warning: statement has no effect [-Wunused-value]
   18 |         #define Debug(...) 0
      |                            ^
Main.cpp:73:9: note: in expansion of macro ‘Debug’
   73 |         Debug("%.3lfMB\n",fabs(&memed-&membg)/1024.0/1024.0);
      |         ^~~~~
Main.cpp:18:28: warning: statement has no effect [-Wunused-value]
   18 |         #define Debug(...) 0
      |                            ^
Main.cpp:78:9: note: in expansion of macro ‘Debug’
   78 |         Debug("%.3lfs\n",1.0*(timed-timbg)/CLOCKS_PER_SEC);
      |         ^~~~~
Main.cpp:74:13: warning: unused variable ‘timbg’ [-Wunused-variable]
   74 |         int timbg=clock();
      |             ^~~~~
Main.cpp:77:13: warning: unused variable ‘timed’ [-Wunused-variable]
   77 |         int timed=clock();
      |             ^~~~~

Judge Result