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  1. #include <stdio.h>
  2.  
  3. #define MAX_DATA 20000
  4.  
  5. int main(void) {
  6. 	double time[MAX_DATA];
  7. 	double voltage[MAX_DATA];
  8. 	int count = 0;
  9.  
  10. 	while(scanf ("%lf,%lf", &time[count], &voltage[count]) == 2){
  11. 		count++;
  12.  
  13. 		if(count >= MAX_DATA){
  14. 			printf("警告：データ数が配列の最大値を超えました。\n");
  15. 			break;
  16. 		}
  17. 	}
  18. 	printf("--- ピーク検出結果 ---\n");
  19. 	printf("波形番号\t時刻[秒]\t電位[V]\n");
  20.  
  21. 	int peak_count = 1;
  22. 	double threshold = 3.5;
  23.  
  24. 	for(int i = 1; i<count - 1; i++){
  25. 		if(voltage[i] > voltage[i-1] && voltage[i] > voltage[i+1] && voltage[i] > threshold){
  26. 			printf("%d\t\t%.2f\t\t%.2f\n", peak_count, time[i], voltage[i]);
  27. 			peak_count++;
  28. 		}
  29. 	}
  30. 	if(peak_count == 1){
  31. 		printf("指定された閾値(%.2fV)を超えるピークは見つかりませんでした。\n", threshold);
  32. 	}
  33. 	return 0;
  34. }
  35.  
Success #stdin #stdout 0s 5320KB
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stdin
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0.000000,3.246368
0.100000,3.248917
0.200000,3.256561
0.300000,3.256561
0.400000,3.241272
0.500000,3.243820
0.600000,3.241272
0.700000,3.248917
0.800000,3.256561
0.900000,3.246368
1.000000,3.248917
1.100000,3.254013
1.200000,3.254013
1.300000,3.256561
1.400000,3.248917
1.500000,3.256561
1.600000,3.254013
1.700000,3.246368
1.800000,3.246368
1.900000,3.248917
2.000000,3.246368
2.100000,3.248917
2.200000,3.246368
2.300000,3.246368
2.400000,3.248917
2.500000,3.248917
2.600000,3.248917
2.700000,3.248917
2.800000,3.248917
2.900000,3.246368
3.000000,3.248917
3.100000,3.246368
3.200000,3.254013
3.300000,3.254013
3.400000,3.254013
3.500000,3.248917
3.600000,3.251465
3.700000,3.256561
3.800000,3.282043
3.900000,3.276946
4.000000,3.320265
4.100000,3.411999
4.200000,3.419644
4.300000,3.440029
4.400000,3.437481
4.500000,3.595468
4.600000,3.768743
4.700000,3.847736
4.800000,3.880862
4.900000,3.916537
5.000000,3.924181
5.100000,3.931826
5.200000,3.929278
5.300000,3.944567
5.400000,3.952211
5.500000,3.959856
5.600000,3.949663
5.700000,3.954759
5.800000,3.964952
5.900000,3.962404
6.000000,3.998078
6.100000,3.985337
6.200000,3.977693
6.300000,4.021012
6.400000,4.033753
6.500000,3.972597
6.600000,3.827351
6.700000,3.682105
6.800000,3.554697
6.900000,3.478252
7.000000,3.417096
7.100000,3.442577
7.200000,3.633690
7.300000,3.812062
7.400000,3.913989
7.500000,3.947115
7.600000,4.013367
7.700000,4.056686
7.800000,4.105101
7.900000,4.125487
8.000000,4.138227
8.100000,4.145872
8.200000,4.140776
8.300000,4.092360
8.400000,3.975145
8.500000,3.776388
8.600000,3.684653
8.700000,3.575082
8.800000,3.526667
8.900000,3.465511
9.000000,3.465511
9.100000,3.457866
9.200000,3.569986
9.300000,3.725424
9.400000,3.896151
9.500000,3.995530
9.600000,4.077071
9.700000,4.158613
9.800000,4.145872
9.900000,4.120390
10.000000,4.089812
10.100000,3.707587
10.200000,3.541956
10.300000,3.488444
10.400000,3.498637
10.500000,3.687202
10.600000,3.931826
10.700000,4.031204
10.800000,4.084716
10.900000,4.150968
stdout
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--- ピーク検出結果 ---
波形番号	時刻[秒]	電位[V]
1		5.10		3.93
2		5.50		3.96
3		5.80		3.96
4		6.00		4.00
5		6.40		4.03
6		8.10		4.15
7		9.70		4.16
https://ideone.com/Y9OdjU
language:
C (gcc 8.3)
created:
8 hours ago
visibility:
public

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