Submission #1540598

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Source Code Expand

#pragma comment(linker, "/stack:20000000")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")

#include <stdio.h>
#include <bits/stdc++.h>
#include <x86intrin.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
// tree<key, mapped = null_type, cmp = less<key>, rb_tree_tag, tree_order_statistics_node_update> name; order_of_key find_by_order

using namespace std;

#define pb push_back
#define ppb pop_back
#define mp make_pair
#define fs first
#define sc second
#define abs(a) ((a) < 0 ? -(a) : (a))
#define sqr(a) ((a) * (a))

typedef unsigned int uint;
typedef long long ll;
typedef unsigned long long ull;

inline pair<pair<bool, bool>, pair<string, bool> > useinout();

#ifdef SOL
double starttime;
#endif

void initialization() {
#ifdef SOL
	starttime = 1000. * clock() / CLOCKS_PER_SEC;
	if (useinout().fs.fs)
		freopen("input.txt", "r", stdin);
	if (useinout().fs.sc)
		freopen("output.txt", "w", stdout);
#else
	srand(__rdtsc());
	const string file = useinout().sc.fs;
	if (!file.empty()) {
		freopen((file + ".in").c_str(), "r", stdin);
		freopen((file + ".out").c_str(), "w", stdout);
	} else
	if(useinout().sc.sc) {
		freopen("input.txt", "r", stdin);
		freopen("output.txt", "w", stdout);
	}
#endif
}

int solution();

void finish(int exitval) {
	fflush(stdout);
#ifdef SOL
	fprintf(stderr, "\n-----------------\nexit value: %d\ntime: %.3lf ms\n-----------------\n", exitval, 1000. * clock() / CLOCKS_PER_SEC - starttime);
#endif
}

int main() {
	initialization();
	finish(solution());
	return (0);
}

const double eps = 1e-9;
const int mod = (int) 1e+9 + 7;
const double pi = acos(-1.);
const int maxn = 100100;

char c[maxn];

int solution() {

	string s;
	getline(cin, s);
	ll ans = 1;
	for(int i = 0; i < s.length(); i++) {
		ans += i + 1 - ++c[s[i]];
	}
	printf("%lld", ans);

	return (0);
}

inline pair<pair<bool, bool>, pair<string, bool> > useinout() {
	return (mp(mp(0, 0), mp("", 0)));
}

//by Andrey Kim

Submission Info

Compile Error

./Main.cpp: In function ‘void initialization()’:
./Main.cpp:43:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
   freopen((file + ".in").c_str(), "r", stdin);
                                              ^
./Main.cpp:44:48: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
   freopen((file + ".out").c_str(), "w", stdout);
                                                ^
./Main.cpp:47:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
   freopen("input.txt", "r", stdin);
                                   ^
./Main.cpp:48:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
   freopen("output.txt", "w", stdout);
          ...

Judge Result