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洛谷 - P2249
{"accepted":false,"attempted":false,"problemId":4026661,"isFav":false,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"128000 kB","spoiler":false},{"title":"Source","content":"深基13.例1","spoiler":true},{"title":"Author","content":"\u003ca href\u003d\u0027https://www.luogu.com.cn/user/28\u0027 target\u003d\u0027_blank\u0027\u003e深入浅出\u003c/a\u003e","spoiler":true},{"title":"Tags","content":"二分","spoiler":true},{"title":"Difficulty","content":"普及-","spoiler":true}],"submitMethods":[false,true,true],"status":0,"statistics":[["Users","\u003cspan title\u003d\u0027Local\u0027\u003e2648 / 2859\u003c/span\u003e"],["","\u003cspan title\u003d\u0027Remote\u0027\u003e124609 / 437871\u003c/span\u003e"]]}