Submission #1540630

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Source Code Expand

/*
Author: CNYALI_LK
LANG: C++
PROG: B.cpp
*/
#include<bits/stdc++.h>
#define up(a,b,c) for (int a(b),a##end(c);a<=a##end;++a)
#define down(a,c,b) for (int a(b),a##end(c);a>=a##end;--a)
#define uup(a,c,b) for (int a(b),a##end(c);a<=a##end;++a)
#define udown(a,b,c) for (int a(b),a##end(c);a>=a##end;--a)
#define endl '\n'
#define debug(...) fprintf(stderr,__VA_ARGS__)
using namespace std;
const double eps=1e-8;
const double PI=acos(-1.0);
typedef long long ll;
template<class T>void chkmin(T &a,T b){a=a<b?a:b;}
template<class T>void chkmax(T &a,T b){a=a>b?a:b;}
template<class T>T sqr(T a){return a*a;}
template<class T>T mmin(T a,T b){return a<b?a:b;}
template<class T>T mmax(T a,T b){return a>b?a:b;}
char a[233333];
ll tot[30];
int main(){
#ifdef cnyali_lk
	freopen("in.txt","r",stdin);
	freopen("out.txt","w",stdout);
#endif
	scanf("%s",a);
	up(i,0,strlen(a)-1)++tot[a[i]-'a'];
	ll sum=1;
	up(i,0,25)up(j,i+1,25)sum+=tot[i]*tot[j];
	printf("%lld\n",sum);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:29:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s",a);
               ^

Judge Result