Submission #923214


Source Code Expand

#pragma GCC optimize("O3")
#pragma GCC target("sse4.2")

#include <cstdio>
#include <unordered_map>
#include <vector>
#include <algorithm>
using namespace std;
typedef int key;

int main(){
	int r,c,n;
	scanf("%d%d%d",&r,&c,&n);
	unordered_map<key,vector<pair<key,long long>>>m;
	for(;n;n--){
		int s1,s2,d;
		scanf("%d%d%d",&s1,&s2,&d);
		m[s1].emplace_back(s2+r,d);
		m[s2+r].emplace_back(s1,-d);
	}
	for(;!m.empty();){
		long long a=-1LL<<61,b=1LL<<61;
		auto s=m.begin()->first;
		vector<pair<key,long long>>st={{s,0}};
		unordered_map<key,long long>memo={{s,0}};
		for(;!st.empty();){
			auto p=*st.rbegin();st.pop_back();
			auto cur=p.first;long long d=p.second;
			memo[cur]=d;
			if(cur<=r)a=max(a,d);
			else b=min(b,d);
			for(auto &e:m[cur]){
				if(memo.find(e.first)==memo.end()){
					st.emplace_back(e.first,d+e.second);
				}else if(memo[e.first]!=d+e.second){
					puts("No");
					return 0;
				}
			}
		}
		if(a>b){
			puts("No");
			return 0;
		}
		for(auto &e:memo)m.erase(m.find(e.first));
	}
	puts("Yes");
}

Submission Info

Submission Time
Task D - Grid and Integers
User leafmoon
Language C++14 (GCC 5.4.1)
Score 800
Code Size 1078 Byte
Status AC
Exec Time 128 ms
Memory 17864 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d",&r,&c,&n);
                          ^
./Main.cpp:17:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d",&s1,&s2,&d);
                             ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 800 / 800
Status
AC × 5
AC × 69
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 0_04.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 1_20.txt, 1_21.txt, 1_22.txt, 1_23.txt, 1_24.txt, 1_25.txt, 1_26.txt, 1_27.txt, 1_28.txt, 1_29.txt, 1_30.txt, 1_31.txt, 1_32.txt, 1_33.txt, 1_34.txt, 1_35.txt, 1_36.txt, 1_37.txt, 1_38.txt, 1_39.txt, 1_40.txt, 1_41.txt, 1_42.txt, 1_43.txt, 1_44.txt, 1_45.txt, 1_46.txt, 1_47.txt, 1_48.txt, 1_49.txt, 1_50.txt, 1_51.txt, 1_52.txt, 1_53.txt, 1_54.txt, 1_55.txt, 1_56.txt, 1_57.txt, 1_58.txt, 1_59.txt, 1_60.txt, 1_61.txt, 1_62.txt, 1_63.txt
Case Name Status Exec Time Memory
0_00.txt AC 3 ms 256 KB
0_01.txt AC 3 ms 256 KB
0_02.txt AC 3 ms 256 KB
0_03.txt AC 3 ms 256 KB
0_04.txt AC 3 ms 256 KB
1_00.txt AC 3 ms 256 KB
1_01.txt AC 2 ms 256 KB
1_02.txt AC 3 ms 256 KB
1_03.txt AC 3 ms 256 KB
1_04.txt AC 2 ms 256 KB
1_05.txt AC 2 ms 256 KB
1_06.txt AC 122 ms 17864 KB
1_07.txt AC 128 ms 17864 KB
1_08.txt AC 110 ms 13988 KB
1_09.txt AC 88 ms 13988 KB
1_10.txt AC 100 ms 12196 KB
1_11.txt AC 92 ms 12196 KB
1_12.txt AC 113 ms 14756 KB
1_13.txt AC 108 ms 14756 KB
1_14.txt AC 113 ms 14756 KB
1_15.txt AC 106 ms 14756 KB
1_16.txt AC 111 ms 14756 KB
1_17.txt AC 104 ms 14756 KB
1_18.txt AC 107 ms 14756 KB
1_19.txt AC 104 ms 14756 KB
1_20.txt AC 61 ms 8456 KB
1_21.txt AC 33 ms 4236 KB
1_22.txt AC 7 ms 768 KB
1_23.txt AC 69 ms 8484 KB
1_24.txt AC 75 ms 9864 KB
1_25.txt AC 60 ms 8844 KB
1_26.txt AC 9 ms 1152 KB
1_27.txt AC 15 ms 1920 KB
1_28.txt AC 97 ms 14372 KB
1_29.txt AC 39 ms 4748 KB
1_30.txt AC 109 ms 14116 KB
1_31.txt AC 44 ms 5644 KB
1_32.txt AC 79 ms 8708 KB
1_33.txt AC 93 ms 14116 KB
1_34.txt AC 16 ms 2048 KB
1_35.txt AC 89 ms 9728 KB
1_36.txt AC 17 ms 2304 KB
1_37.txt AC 38 ms 5244 KB
1_38.txt AC 79 ms 9252 KB
1_39.txt AC 27 ms 3596 KB
1_40.txt AC 77 ms 8996 KB
1_41.txt AC 40 ms 5132 KB
1_42.txt AC 66 ms 8968 KB
1_43.txt AC 66 ms 8484 KB
1_44.txt AC 86 ms 12576 KB
1_45.txt AC 19 ms 3072 KB
1_46.txt AC 88 ms 13988 KB
1_47.txt AC 36 ms 4856 KB
1_48.txt AC 27 ms 4364 KB
1_49.txt AC 13 ms 1792 KB
1_50.txt AC 53 ms 7820 KB
1_51.txt AC 87 ms 11556 KB
1_52.txt AC 10 ms 1280 KB
1_53.txt AC 18 ms 2432 KB
1_54.txt AC 33 ms 4108 KB
1_55.txt AC 45 ms 5648 KB
1_56.txt AC 57 ms 8356 KB
1_57.txt AC 100 ms 10660 KB
1_58.txt AC 82 ms 12836 KB
1_59.txt AC 8 ms 1024 KB
1_60.txt AC 3 ms 256 KB
1_61.txt AC 3 ms 256 KB
1_62.txt AC 3 ms 256 KB
1_63.txt AC 3 ms 256 KB