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/* Copyright 2019-2021 DistressNetwork° <uplink@distress.network>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
int main() {
char str[2048];
char safe[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890-._~";
char *ret;
int i;
scanf("%[^\n]", str);
int length = strlen(str);
for(i = 0; i < length; i++) {
ret = strchr(safe, str[i]);
if(ret == NULL) {
printf("%%%02X", (unsigned)str[i] & 0xffU);
} else {
printf("%c", str[i]);
}
}
printf("\n");
return 0;
}
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