fix: corrected problem metadata and added new sample input.

ra-preguicosa/problem.json

@@ -2,7 +2,7 @@
     "version": "1.0",
     "problem": {
         "title": "A rã saltadora preguiçosa",
-        "event": "",
+        "event": "Fase regional sulamericana do ICPC 2006",
         "time_limit": 1.0,
         "memory_limit_mb": 1536,
         "input_file": "stdin",
@@ -11,10 +11,10 @@
         "grader": false,
         "subject": {
             "en_us": [
-                ""
+                "graph", "shortest-path", "dijkstra", "A*"
             ],
             "pt_br": [
-                ""
+                "grafo", "menor-caminho", "A*", "dijkstra"
             ],
             "es": [
                 ""
@@ -22,14 +22,14 @@
         }
     },
     "author": {
-        "name": "SPOJ - RAPREGUI",
-        "affiliation": "",
+        "name": "Guilherme Ottoni",
+        "affiliation": "UNICAMP",
         "country": "",
         "email": ""
     },
     "build": {
-        "run_generator": true,
-        "run_validator": true,
+        "run_generator": false,
+        "run_validator": false,
         "produce_outputs": true,
         "run_checker": true,
         "run_all_solutions": true,
@@ -39,7 +39,7 @@
         "cpu_count": 1,
         "build_pdf": true,
         "pdf_format": "ds",
-        "io_samples": 0
+        "io_samples": 1
     },
     "solutions": {
         "main-ac": "ac.cpp",