特判使用教程 感谢涛巨
记录一下，省的以后忘记了。
/* Utility functions for writing output validators for the Kattis
* problem format.
*
* The primary functions and variables available are the following.
* In many cases, the only functions needed are "init_io",
* "wrong_answer", and "accept".
*
* - init_io(argc, argv):
* initialization
*
* - judge_in, judge_ans, author_out:
* std::istream objects for judge input file, judge answer
* file, and submission output file.
*
* - accept():
* exit and give Accepted!
*
* - accept_with_score(double score):
* exit with Accepted and give a score (for scoring problems)
*
* - judge_message(std::string msg, ...):
* printf-style function for emitting a judge message (a
* message that gets displayed to a privileged user with access
* to secret data etc).
*
* - wrong_answer(std::string msg, ...):
* printf-style function for exitting and giving Wrong Answer,
* and emitting a judge message (which would typically explain
* the cause of the Wrong Answer)
*
* - judge_error(std::string msg, ...):
* printf-style function for exitting and giving Judge Error,
* and emitting a judge message (which would typically explain
* the cause of the Judge Error)
*
* - author_message(std::string msg, ...):
* printf-style function for emitting an author message (a
* message that gets displayed to the author of the
* submission). (Use with caution, and be careful not to let
* it leak information!)
*
*/
#pragma once
#include <sys/stat.h>
#include <cassert>
#include <cstdarg>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <sstream>
typedef void (*feedback_function)(const std::string &, ...);
const int EXITCODE_AC = 42;
const int EXITCODE_WA = 43;
const std::string FILENAME_AUTHOR_MESSAGE = "teammessage.txt";
const std::string FILENAME_JUDGE_MESSAGE = "judgemessage.txt";
const std::string FILENAME_JUDGE_ERROR = "judgeerror.txt";
const std::string FILENAME_SCORE = "score.txt";
#define USAGE "%s: judge_in judge_ans feedback_dir < author_out\n"
std::ifstream judge_in, judge_ans;
std::istream author_out(std::cin.rdbuf());
char *feedbackdir = NULL;
void vreport_feedback(const std::string &category,
const std::string &msg,
va_list pvar) {
std::ostringstream fname;
if (feedbackdir)
fname << feedbackdir << '/';
fname << category;
FILE *f = fopen(fname.str().c_str(), "a");
assert(f);
vfprintf(f, msg.c_str(), pvar);
fclose(f);
}
void report_feedback(const std::string &category, const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(category, msg, pvar);
}
void author_message(const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(FILENAME_AUTHOR_MESSAGE, msg, pvar);
}
void judge_message(const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(FILENAME_JUDGE_MESSAGE, msg, pvar);
}
void wrong_answer(const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(FILENAME_JUDGE_MESSAGE, msg, pvar);
exit(EXITCODE_WA);
}
void judge_error(const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(FILENAME_JUDGE_ERROR, msg, pvar);
assert(0);
}
void accept() {
exit(EXITCODE_AC);
}
void accept_with_score(double scorevalue) {
report_feedback(FILENAME_SCORE, "%.9le", scorevalue);
exit(EXITCODE_AC);
}
bool is_directory(const char *path) {
struct stat entry;
return stat(path, &entry) == 0 && S_ISDIR(entry.st_mode);
}
void init_io(int argc, char **argv) {
if(argc < 4) {
fprintf(stderr, USAGE, argv[0]);
judge_error("Usage: %s judgein judgeans feedbackdir [opts] < userout", argv[0]);
}
// Set up feedbackdir first, as that allows us to produce feedback
// files for errors in the other parameters.
if (!is_directory(argv[3])) {
judge_error("%s: %s is not a directory\n", argv[0], argv[3]);
}
feedbackdir = argv[3];
judge_in.open(argv[1], std::ios_base::in);
if (judge_in.fail()) {
judge_error("%s: failed to open %s\n", argv[0], argv[1]);
}
judge_ans.open(argv[2], std::ios_base::in);
if (judge_ans.fail()) {
judge_error("%s: failed to open %s\n", argv[0], argv[2]);
}
author_out.rdbuf(std::cin.rdbuf());
}
#include <regex>
using namespace std;
int main(int argc, char **argv) {
init_io(argc, argv);
int n, m, rounds = 0, no_matches = 0;
judge_in >> n >> m;
bool played[m][n][m][n];
memset(played, 0, sizeof(played));
regex match_regex("([A-Za-z])([0-9]+)-([A-Za-z])([0-9]+)");
string line;
while (getline(author_out, line)) {
rounds++;
istringstream iss(line);
string match;
bool pr[m][n];
memset(pr, 0, sizeof(pr));
while (iss >> match) {
cout << match << endl;
smatch mr;
if (!regex_match(match, mr, match_regex)) {
wrong_answer("Invalid match format in round %d: %s", rounds, match.c_str());
}
char c1 = mr[1].str()[0], c2 = mr[3].str()[0];
int t1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 - 'A') : (c1 - 'a');
int t2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 - 'A') : (c2 - 'a');
int p1 = atoi(mr[2].str().c_str()) - 1, p2 = atoi(mr[4].str().c_str()) - 1;
if (t1 < 0 || t2 < 0 || t1 >= m || t2 >= m || p1 < 0 || p2 < 0 || p1 >= n || p2 >= n) {
wrong_answer("Invalid player reference in round %d: %s", rounds, match.c_str());
}
if (t1 == t2) {
wrong_answer("Round %d: %s: Players from same team should not play against each other", rounds, match.c_str());
}
if (played[t1][p1][t2][p2]) {
wrong_answer("Round %d: %s: Players have already played against each other", rounds, match.c_str());
}
if (pr[t1][p1] || pr[t2][p2]) {
wrong_answer("Round %d: %s: Players have already played in this round", rounds, match.c_str());
}
pr[t1][p1] = true;
pr[t2][p2] = true;
played[t1][p1][t2][p2] = true;
played[t2][p2][t1][p1] = true;
no_matches++;
}
}
if (rounds > n * (m-1) + 1) {
wrong_answer("Too many rounds! Solution had %d rounds, but only %d allowed.", rounds, n * (m-1) + 1);
}
if (no_matches != m*n*(m-1)*n/2) {
wrong_answer("There are %d matches missing in the schedule!", m*n*(m-1)*n/2 - no_matches);
}
accept();
}
修改的地方：
#include <sys/stat.h>
#include <cassert>
#include <cstdarg>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <sstream>
typedef void (*feedback_function)(const std::string &, ...);
const int EXITCODE_AC =0;
const int EXITCODE_WA = 1;
const std::string FILENAME_AUTHOR_MESSAGE = "teammessage.txt";
const std::string FILENAME_JUDGE_MESSAGE = "judgemessage.txt";
const std::string FILENAME_JUDGE_ERROR = "judgeerror.txt";
const std::string FILENAME_SCORE = "score.txt";
#define USAGE "%s: judge_in judge_ans feedback_dir < author_out\n"
std::ifstream judge_in, judge_ans;
std::ifstream author_out;
char *feedbackdir = NULL;
void vreport_feedback(const std::string &category,
const std::string &msg,
va_list pvar) {
std::ostringstream fname;
if (feedbackdir)
fname << feedbackdir << '/';
fname << category;
FILE *f = fopen(fname.str().c_str(), "a");
assert(f);
vfprintf(f, msg.c_str(), pvar);
fclose(f);
}
void report_feedback(const std::string &category, const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(category, msg, pvar);
}
void author_message(const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(FILENAME_AUTHOR_MESSAGE, msg, pvar);
}
void judge_message(const std::string &msg, ...) {
va_list pvar;
va_start(pvar, msg);
vreport_feedback(FILENAME_JUDGE_MESSAGE, msg, pvar);
}
void wrong_answer(const std::string &msg, ...) {
//va_list pvar;
//va_start(pvar, msg);
//vreport_feedback(FILENAME_JUDGE_MESSAGE, msg, pvar);
exit(EXITCODE_WA);
}
void judge_error(const std::string &msg, ...) {
//va_list pvar;
// va_start(pvar, msg);
// vreport_feedback(FILENAME_JUDGE_ERROR, msg, pvar);
assert(0);
}
void accept() {
exit(EXITCODE_AC);
}
void accept_with_score(double scorevalue) {
// report_feedback(FILENAME_SCORE, "%.9le", scorevalue);
exit(EXITCODE_AC);
}
bool is_directory(const char *path) {
struct stat entry;
return stat(path, &entry) == 0 && S_ISDIR(entry.st_mode);
}
void init_io(int argc, char **argv) {
/* if(argc < 4) {
fprintf(stderr, USAGE, argv[0]);
judge_error("Usage: %s judgein judgeans feedbackdir [opts] < userout", argv[0]);
}
if (!is_directory(argv[3])) {
judge_error("%s: %s is not a directory\n", argv[0], argv[3]);
}
feedbackdir = argv[3];
*/
judge_in.open(argv[1], std::ios_base::in);
if (judge_in.fail()) {
judge_error("%s: failed to open %s\n", argv[0], argv[1]);
}
judge_ans.open(argv[2], std::ios_base::in);
if (judge_ans.fail()) {
judge_error("%s: failed to open %s\n", argv[0], argv[2]);
}
author_out.open(argv[3], std::ios_base::in);
if (author_out.fail()) {
judge_error("%s: failed to open %s\n", argv[0], argv[3]);///
}
}
#include <regex>
using namespace std;
int main(int argc, char **argv) {
init_io(argc, argv);
int n, m, rounds = 0, no_matches = 0;
judge_in >> n >> m;
bool played[m][n][m][n];
memset(played, 0, sizeof(played));
regex match_regex("([A-Za-z])([0-9]+)-([A-Za-z])([0-9]+)");
string line;
while (getline(author_out, line)) {
rounds++;
istringstream iss(line);
string match;
bool pr[m][n];
memset(pr, 0, sizeof(pr));
while (iss >> match) {
cout << match << endl;
smatch mr;
if (!regex_match(match, mr, match_regex)) {
wrong_answer("Invalid match format in round %d: %s", rounds, match.c_str());
}
char c1 = mr[1].str()[0], c2 = mr[3].str()[0];
int t1 = (c1 >= 'A' && c1 <= 'Z') ? (c1 - 'A') : (c1 - 'a');
int t2 = (c2 >= 'A' && c2 <= 'Z') ? (c2 - 'A') : (c2 - 'a');
int p1 = atoi(mr[2].str().c_str()) - 1, p2 = atoi(mr[4].str().c_str()) - 1;
if (t1 < 0 || t2 < 0 || t1 >= m || t2 >= m || p1 < 0 || p2 < 0 || p1 >= n || p2 >= n) {
wrong_answer("Invalid player reference in round %d: %s", rounds, match.c_str());
}
if (t1 == t2) {
wrong_answer("Round %d: %s: Players from same team should not play against each other", rounds, match.c_str());
}
if (played[t1][p1][t2][p2]) {
wrong_answer("Round %d: %s: Players have already played against each other", rounds, match.c_str());
}
if (pr[t1][p1] || pr[t2][p2]) {
wrong_answer("Round %d: %s: Players have already played in this round", rounds, match.c_str());
}
pr[t1][p1] = true;
pr[t2][p2] = true;
played[t1][p1][t2][p2] = true;
played[t2][p2][t1][p1] = true;
no_matches++;
}
}
if (rounds > n * (m-1) + 1) {
wrong_answer("Too many rounds! Solution had %d rounds, but only %d allowed.", rounds, n * (m-1) + 1);
}
if (no_matches != m*n*(m-1)*n/2) {
wrong_answer("There are %d matches missing in the schedule!", m*n*(m-1)*n/2 - no_matches);
}
accept();
}
